Recommended
Editors Choice, Suggested Games, Top
The Gym
Who knew the naughty things that happen in gyms? This is a HTML web browser game that features a variety of sexual adventures happening in the gym. There is a lot of energy and adrenaline in the gym and the members are desperate for a release. Meet with girls and fuck their well toned bodies. Join threesomes, let lose and enjoy some bi-phoric pleasure. This game is visually stimulating and has so many sexy positions you could try out. To play, just pick the right answers, make correct moves and you'll get lucky in this free sex dating simulator.
1.7M 60% 43
Recommended 
HTML
![Tower [v 1.036.15 Extended]](http://fgn.cdn.serverable.com/common/flashes/p/t/tower.jpg)
![Tower [v 1.036.15 Extended]](http://fgn.cdn.serverable.com/common/flashes/p/t/tower-2.jpg)
![Tower [v 1.036.15 Extended]](http://fgn.cdn.serverable.com/common/flashes/p/t/tower-3.jpg)
![Tower [v 1.036.15 Extended]](http://fgn.cdn.serverable.com/common/flashes/p/t/tower-4.jpg)
![Tower [v 1.036.15 Extended]](http://fgn.cdn.serverable.com/common/flashes/p/t/tower-5.jpg)
![Tower [v 1.036.15 Extended]](http://fgn.cdn.serverable.com/common/flashes/p/t/tower-6.jpg)
Tower [v 1.036.15 Extended]
Prepare for an expansive and seductive journey into the heart of the Dark Lord's realm! Tower is a strategic adventure where you'll delve into towering fortresses teeming with peril and sex. Explore a universe brimming with otherworldly wonders and navigate treacherous landscapes as you ascend each level. Your mission is to conquer the towers, floor by floor, but be warned - these are no ordinary strongholds. They are guarded by captivating monster girls, each possessing unique abilities and desires. To succeed, you must utilize your cunning and strategic prowess, carefully planning your moves to overcome their charms and challenges. Fulfill their desires, and you may find yourself rewarded with powerful skills, invaluable insights and hot sex. Prepare for a long and stimulating journey filled with strategic gameplay, captivating encounters, and unforgettable rewards. The fate of the tower rests in your hands!
1.4M 72% 197Recommended 
Flash
Aeon’s Echo: The Game (Sp0ns0red)
Dive into the enchanting world of Aeons Echo! As the protagonist, you will interact, bond, and evolve with various captivating goddesses. Enjoy an immersive role-playing adventure in a visually stunning universe. Play Free now!
200K 100%
Thirsty for My Guest Season 2
Good news - you can start this game without needing saves from the previous part. Just fill out a quick questionnaire, and you’re ready to dive in. However, we highly recommend playing the earlier game to fully immerse yourself in the ongoing story. The tale of your past girlfriend continues, bringing even more intense and sensual experiences as the plot unfolds. Whether you're picking up where you left off or jumping in fresh, expect a journey filled with growing sexual pleasure and deep emotional connections. Get ready to explore the next chapter of this captivating story, where every choice leads to new and exciting encounters. Of course, happy girlfriend equals more sex so keep her entertained.
281.1K 77% 15Recommended 
Ren'Py
J-Girl Train
This exciting hentai title lets you choose between four characters: Lala, Satsuki, Rinslet or Mamori. Each of these bishōjo finds themselves in an unexpected sexual situation on a train. Naturally, this gameplay will task you with selecting the right tools and earning points by touching them at the right spots to unlock the next scene. This means you can expect to see lots of scenes involving ahegao, sumata, paizuri, and more. Keep in mind that all your progress will be stored in gallery, where you can simply look at all pictures you've collected. Also, this is one file game, but the file is huge, so please be patient until it fully loads. Hit play and see what kind of mischief these hentai babes stumble into!
1.1M 65% 28Recommended Flash
![Memoirs of a Battle Brothel [v 1.08]](http://fgn.cdn.serverable.com/common/flashes/p/m/memoirs_of_a_battle_brothel.jpg)
![Memoirs of a Battle Brothel [v 1.08]](http://fgn.cdn.serverable.com/common/flashes/p/m/memoirs_of_a_battle_brothel-2.jpg)
![Memoirs of a Battle Brothel [v 1.08]](http://fgn.cdn.serverable.com/common/flashes/p/m/memoirs_of_a_battle_brothel-3.jpg)
![Memoirs of a Battle Brothel [v 1.08]](http://fgn.cdn.serverable.com/common/flashes/p/m/memoirs_of_a_battle_brothel-4.jpg)
![Memoirs of a Battle Brothel [v 1.08]](http://fgn.cdn.serverable.com/common/flashes/p/m/memoirs_of_a_battle_brothel-5.jpg)
![Memoirs of a Battle Brothel [v 1.08]](http://fgn.cdn.serverable.com/common/flashes/p/m/memoirs_of_a_battle_brothel-6.jpg)
![Memoirs of a Battle Brothel [v 1.08]](http://fgn.cdn.serverable.com/common/flashes/p/m/memoirs_of_a_battle_brothel-7.jpg)
Memoirs of a Battle Brothel [v 1.08]
In MoonFall, a perilous city where danger lurks on every corner, survival depends on profit, and justice is wielded with a blade. Amidst the chaos, the main character acts as a mediator, aiding girls in finding shelter and catering to affluent clients. Your mission is to bring together a network of girls to ensure customer satisfaction with a diverse selection of courtesans. Are you ready to immerse yourself in the gritty underworld of MoonFall, navigating the treacherous streets and forging alliances to thrive in this cutthroat environment? As the pimp master, make sure you only choose the sexiest girls who know how to please your clients. Of course you can test drive them to know for sure.
153K 61% 17Recommended 
RPG Maker
Alena 2: Police Story
In the continuation of the previous game, Alena, who was captured by a stranger, finds herself in a dire situation. A sexy female police officer, while patrolling a spooky house, hears a scream and goes to investigate. Unfortunately, she too ends up being captured. In this thrilling game, you’ll experience a range of BDSM scenarios as you help the characters navigate their predicament. Between the intense sex scenes, solve memory puzzles to advance the story and unlock new content. The combination of erotic elements and challenging puzzles offers a unique and engaging experience. Dive into this suspenseful adventure and enjoy the intricate blend of BDSM themes and interactive gameplay.
420.8K 61% 7Recommended Flash
Dirty Pictures
Our main character is called Diego. He is a really great photographer who is doing really well. He owns a dainty photo studio where sexy babes come for a photo shoot. Today, Allce, a sexy model visits Diego’s studio and requests him to take some hot pictures. She want nude erotic photos that will hopefully bring back the spark in her relationships with the boyfriend. Diego is happy to do this but he wants her so bad. He decides to play it smart so that he gets more than an erotic photo session from Alice. Will he be able to fuck the sexy babe? Luckily she is desperate and sexually starved. Fucking her will be easy as cutting pie.
367.4K 60% 17Recommended Flash
Eroman: Seducer
Embark on a sunny day adventure, aiming to charm a few girls in their daily routines. Guide our hero by finding and using various items strategically in different locations to engage with the girls. Use W A S D for movement and press E for actions. The game features Easy and Hard modes, with the only distinction being that in Easy mode, you have an unlimited number of mistakes when using the wrong items. How about you apply some sunblock on before your cock explodes in the summer heat then fuck their juicy pussies. They will be dripping and anticipating to feel your veiny cock up their holes. Just remember to master the controls.
478.7K 82% 66Recommended 
Reload
Get ready for an exciting game where you step into the shoes of a young guy with big dreams of becoming a writer. But here's the kicker: you're also a student, juggling the challenges of education and pursuing your passion. In this game, you'll encounter a diverse cast of characters, from supportive friends to sexy acquaintances. The choices you make will shape your journey, leading you down different paths and presenting you with unique situations.Will you prioritize your studies or dive headfirst into the world of writing? Along the way, you'll face dilemmas, romance, and unexpected twists that will test your decision-making skills.
379.4K 72% 27Recommended Ren'Py
Zombies Retreat [v 2.1.1]
Welcome to Camp Zomi, a beautiful resort located in the heart of the Zomi Woods. There are gorgeous sights and rich history here, especially for a handsome young man like yourself. Camp Zomi's campsite is full of locations to explore and activities to sample: take a dip in the cool waters of Lake Zomi, hang out with friends in the Rec Center, or take a refreshing hike along scenic trails. Better hurry, though, because there's an evil force closing in. This adult porno RPG game challenges you to save the day and fuck sexy girls along the way. How you build your character and relationships will determine the story. Approach little hotties in their cabins and seduce them, gather special items, and fight the zombie minions and bosses. Unlock special scenes with the girls, including a steamy bath, secret glory hole, and sexy workout threesome. This XXX game is perfect for adventure fans and has tons of replay value.
2.4M 76% 801Recommended RPG Maker
VirtuaGirl Differences Xmas Edition
Remember the previous versions of this game? They were quite challenging, weren’t they? This time, we’ve added a sexy Christmas twist to make it more fun and less difficult. Your goal is to find 6 differences between two pictures in each of the 12 levels. Enjoy the new, simpler gameplay while joining our hot babes Natali Blond, Nikky Case, and Mina. As you play, you’ll uncover festive, sexy surprises. See if you can find all the differences and achieve the highest score. Have a great time with our Christmas-themed game and celebrate the holidays with some extra fun. Merry Christmas, everyone!
421.8K 62% 48Recommended Flash
![Bloody Passion [v 0.7b]](http://fgn.cdn.serverable.com/common/flashes/p/b/bloody_passion.jpg)
![Bloody Passion [v 0.7b]](http://fgn.cdn.serverable.com/common/flashes/p/b/bloody_passion-2.jpg)
![Bloody Passion [v 0.7b]](http://fgn.cdn.serverable.com/common/flashes/p/b/bloody_passion-3.jpg)
![Bloody Passion [v 0.7b]](http://fgn.cdn.serverable.com/common/flashes/p/b/bloody_passion-4.jpg)
![Bloody Passion [v 0.7b]](http://fgn.cdn.serverable.com/common/flashes/p/b/bloody_passion-5.jpg)
![Bloody Passion [v 0.7b]](http://fgn.cdn.serverable.com/common/flashes/p/b/bloody_passion-6.jpg)
![Bloody Passion [v 0.7b]](http://fgn.cdn.serverable.com/common/flashes/p/b/bloody_passion-7.jpg)
Bloody Passion [v 0.7b]
This is an erotic visual novel that has you playing as a young university student in a fictional world. You find a house in the middle of the city, you want to study, and you end up renting it with hot girls from your family. For this reason, you end up seeing many different sexual views daily. In this porno game, you must conduct your daily duties and manage your relationships with all the house members. However, there will also be a mystic encounter that you need to watch out for that comes into your life. You can expect an uncensored story riddled with lust, domination, corruption, and so much more. Hit play to see how this twisted adventure all unfolds now!
404.3K 69% 33Recommended Ren'Py
Meet and fuck Leila
How about another brand new sexual adventure? You are just chilling at a bar when you spot a pretty babe next to a bar table. She is drop dead gorgeous and is oblivious to how you are eyeing her. She has these big boobs that are so tempting. All you can think of is how it would feel touching them and burrying your head in all that sweetness. Now, what are you waiting for? Pick her up and trying getting under that skirt. Go to Leila and talk her out. You never know, play your cards right and you will get to take her home. It's definitely going to be a hot night with an even hotter babe. It's going to be raining creampies tonight!
1.3M 56% 131Recommended Flash
D.Q. Fight 2
Japanese comics are simply otherworldly. This is another great smutty game. We have brought you several erotic babes to choose from. All the girls are sexy and will do anything you tell them to. They are your sex slaves. We have Bianca, Alena, Setia and Jessica. Choose your favorite and get to fucking. As her master, you will need to know her pleasure points and things like what makes her tick. Click on the right spots and enjoy some power ups. There will also be a group of guys who will gangbang them until their pussies pulsate with desire. Seems like you walked right into pussy Armageddon.
758.1K 65% 22Recommended Flash
Defending Lydia Collier [v 0.17.1]
You play as a lawyer surrounded by so many temptations. First, you have a hot assistant called Ellie who you have always had the hots for. But this story is not about her. It's about your new client who you have to defend, a girl. She happens to be some rich guy's wife who has disappeared. You need to prove she had nothing to do with her husband's disappearance and that she is innocent. As you follow her everywhere, help her in police interviews and court proceedings, you can't help but want her sweet pussy. She also has the hots for you and gives you mind blowing sex. This case is now personal. You must set your eyes on her perky breasts and winning!
2.6M 79% 259Recommended Ren'Py
Aeon’s Echo: The Game (Sp0ns0red)
Dive into the enchanting world of Aeons Echo! As the protagonist, you will interact, bond, and evolve with various captivating goddesses. Enjoy an immersive role-playing adventure in a visually stunning universe. Play Free now!
200K 100%
Dirty Education
This hentai game is focused on the main protagonist Kenny, whose hormones are kicking in and now he is struggling to concentrate in school and as such, his grades are failing. To fix this problem, he decides to head out to a special summer camp full of big beefy men and they proudly use sex as part of their education. At its core, this is a yaoi hentai featuring furry characters in several intimate scenes. The eroge also comes with unique gameplay that offers a combination of puzzle solving, visual novel, and RPG. Hit play to explore all kinds of sexual mischief in this camp now!
402.5K 60% 34Recommended 
Gays
Flash
![Fetish Locator Week 2 [v 2.0.36]](http://fgn.cdn.serverable.com/common/flashes/p/f/fetish_locator_week_2.jpg)
![Fetish Locator Week 2 [v 2.0.36]](http://fgn.cdn.serverable.com/common/flashes/p/f/fetish_locator_week_2-2.jpg)
![Fetish Locator Week 2 [v 2.0.36]](http://fgn.cdn.serverable.com/common/flashes/p/f/fetish_locator_week_2-3.jpg)
![Fetish Locator Week 2 [v 2.0.36]](http://fgn.cdn.serverable.com/common/flashes/p/f/fetish_locator_week_2-4.jpg)
![Fetish Locator Week 2 [v 2.0.36]](http://fgn.cdn.serverable.com/common/flashes/p/f/fetish_locator_week_2-5.jpg)
![Fetish Locator Week 2 [v 2.0.36]](http://fgn.cdn.serverable.com/common/flashes/p/f/fetish_locator_week_2-6.jpg)
![Fetish Locator Week 2 [v 2.0.36]](http://fgn.cdn.serverable.com/common/flashes/p/f/fetish_locator_week_2-7.jpg)
Fetish Locator Week 2 [v 2.0.36]
This game has a big archive full of animations so it may take a while to load. So, try and be patient. You will also need to use a high performance device to play this second part. When it comes to playing, you can use previous saves or pick some of the basic paths that will be provided. The game has quite a catchy storyline. It's full of different fetishes such as pissing, rimjobs and so much more. We recommend that you play the previous parts of the game so that you can go deeper into the story.
715.1K 82% 47Recommended 
Shemales
Ren'Py
Legend of Krystal vG
This is another game from the Legend of Krystal series, and this one is all about living life day by day. You'll have the freedom to plan your schedule and choose what you want to do. Explore the game's world, interact with other characters, and have tons of sex. Whether you want to go for a walk, engage in exciting quests, or simply have a chat with the game's diverse cast, the choice is yours! Immerse yourself in this immersive experience where every decision you make shapes your character's journey. Get ready to embark on a captivating adventure filled with endless possibilities.
825.3K 68% 20Recommended Flash
![My Future Wife: Ep.3 [v 0.23]](http://fgn.cdn.serverable.com/common/flashes/p/m/my_future_wife_ep_3.jpg)
![My Future Wife: Ep.3 [v 0.23]](http://fgn.cdn.serverable.com/common/flashes/p/m/my_future_wife_ep_3-2.jpg)
![My Future Wife: Ep.3 [v 0.23]](http://fgn.cdn.serverable.com/common/flashes/p/m/my_future_wife_ep_3-3.jpg)
![My Future Wife: Ep.3 [v 0.23]](http://fgn.cdn.serverable.com/common/flashes/p/m/my_future_wife_ep_3-4.jpg)
![My Future Wife: Ep.3 [v 0.23]](http://fgn.cdn.serverable.com/common/flashes/p/m/my_future_wife_ep_3-5.jpg)
![My Future Wife: Ep.3 [v 0.23]](http://fgn.cdn.serverable.com/common/flashes/p/m/my_future_wife_ep_3-6.jpg)
![My Future Wife: Ep.3 [v 0.23]](http://fgn.cdn.serverable.com/common/flashes/p/m/my_future_wife_ep_3-7.jpg)
My Future Wife: Ep.3 [v 0.23]
This is a continuation of the series. You will have to play the 2 previous episodes so that you understand the game's storyline. In this episode, you will meet more new characters who are thirsty and want to perform more sex actions with you. They are horny and desperately want to have a taste of your mighty shlong. You will keep on travelling through time and meeting all kinds of characters. Time travel is a delicate affair and the more you travel, the weaker you are so it may end up in tragedy. To avoid this, just make the right decisions, don't be too greedy and ensure you pace yourself.
539.7K 69% 50Recommended Ren'Py
Christmas Eve In Metropolis
In this Christmas game, you're on a mission to assist Santa in collecting and delivering presents. Your goal is to find 10 specific objects listed at the bottom of the screen in a hidden object challenge. Once you've gathered all the items, it's time to distribute them to those who need them the most. Get ready for a festive adventure as you help Santa spread joy and cheer to everyone. Keep your eyes peeled for the hidden objects and make sure to deliver them to the right recipients. It's a fun and heartwarming task that will make this Christmas season even more special. Things will definitely be hotter this Christmas.
305.7K 60% 18Recommended HTML
Sex with Maid
In this hentai adult game, you get the chance to enjoy some sex with a hot maid and even take a look at your act from various angles. At the start, you can strip her naked before touching her body and penetrating her in different positions. While this eroge doesn’t come with much of a story, the gameplay is fairly simple enough to navigate, as all you need to do is just click on the buttons at the right side to switch the camera or pose. You can expect to see several scenes that feature ahegao, sumata, tekoki, and more. Click on the start button to experience what this bishōjo has to offer.
482.2K 72% 33Recommended Flash
Rent Control Master
In this challenging and complex game, you play as the manager of a building with 365 days to seduce and hook up with the tenants. Each room houses sexy babes, each with unique characteristics, fetishes, and desires. It's not a simple click-through game—you'll need strategy and patience to figure out what makes each tenant tick. Explore rooms, interact with the residents, and carefully plan your moves to uncover what it takes to succeed. The game demands more than just random choices; understanding their needs and satisfying their desires is key. With multiple layers and intricate gameplay, this game offers a deep experience for those who enjoy more than just a straightforward adventure.
1.4M 59% 58Recommended HTML
![Life of Desmond [v 0.9.5.1]](http://fgn.cdn.serverable.com/common/flashes/p/l/life_of_desmond.jpg)
![Life of Desmond [v 0.9.5.1]](http://fgn.cdn.serverable.com/common/flashes/p/l/life_of_desmond-2.jpg)
![Life of Desmond [v 0.9.5.1]](http://fgn.cdn.serverable.com/common/flashes/p/l/life_of_desmond-3.jpg)
![Life of Desmond [v 0.9.5.1]](http://fgn.cdn.serverable.com/common/flashes/p/l/life_of_desmond-4.jpg)
![Life of Desmond [v 0.9.5.1]](http://fgn.cdn.serverable.com/common/flashes/p/l/life_of_desmond-5.jpg)
![Life of Desmond [v 0.9.5.1]](http://fgn.cdn.serverable.com/common/flashes/p/l/life_of_desmond-6.jpg)
![Life of Desmond [v 0.9.5.1]](http://fgn.cdn.serverable.com/common/flashes/p/l/life_of_desmond-7.jpg)
Life of Desmond [v 0.9.5.1]
This is a story about a 21-year-old man and it starts with him on a train on his way to the big city after having convinced his parents to let him study in the big city. You managed to secure a good spot in a good school and your aunt Lana has even offered you room and board in her house. But the best part is that she also has two young and sexy daughters called Jessy and Alice. Sounds like a promising and predictable plot, right? Well, there’s a lot to unpack with this family, so anything can happen. Play the game to find out what kind of trouble and sexual situations he ends up stumbling into!
506.1K 73% 50Recommended Gays
Ren'Py
Thirsty for My Guest Season 4 [Ep. 29.3]
This is a nsfw game that continues the Thirsty for My Guest series with a 4th season. You get to pick any story points you want and it follows the main character who met a girl named Vicki with a little daughter Jenna when he was younger, but the relationship didn't last long and they broke up. Now, it’s been many years later, and suddenly, your ex-girlfriend calls you up asking you to look after Jenna for 2 weeks. Only this time, Jenna is no longer a little girl but has grown into an adult beauty with tender feelings for you. What could possibly go wrong? Hit play and explore this thrilling story that leads to some intensely erotic situations involving blowjobs, handjobs, and who knows what else!
349.5K 77% 18Recommended Ren'Py
Chimera Ingoku
The most bizarre things happen in science labs. Normally, scientists conduct experiments on animals or dummies. But this time it's different. You are a sex toy at the laboratory where scientists enjoy toying with you as they record your pleasure limits. In this episode, a sexy girl is one of the test subjects. She tried to escape but she was caught by some professor who in turn fucked her. He is one horny monster and fucks her so many times in different rooms. He fucks that ass in different positions and enjoys cumming in her. I don't know what he is testing but boy does it look mighty good.
391.5K 61% 6Recommended Flash
Three Rules of Life
Suddenly your parents divorced, it became a real tragedy for you. You skipped classes and it had a bad effect on your academic performance. That's why you were left for the repeat year. You decide to find out the reasons for the divorce of your parents and find yourself involved in various difficult situations with the people around you. With each new day, you will become more and more entangled about what is happening.
238.6K 80% 31Recommended Ren'Py
![Porn Bastards: Raven [v 2.0]](http://fgn.cdn.serverable.com/common/flashes/p/p/porn_bastards_raven.jpg)
![Porn Bastards: Raven [v 2.0]](http://fgn.cdn.serverable.com/common/flashes/p/p/porn_bastards_raven-2.jpg)
![Porn Bastards: Raven [v 2.0]](http://fgn.cdn.serverable.com/common/flashes/p/p/porn_bastards_raven-3.jpg)
![Porn Bastards: Raven [v 2.0]](http://fgn.cdn.serverable.com/common/flashes/p/p/porn_bastards_raven-4.jpg)
![Porn Bastards: Raven [v 2.0]](http://fgn.cdn.serverable.com/common/flashes/p/p/porn_bastards_raven-5.jpg)
Porn Bastards: Raven [v 2.0]
This is a Teen Titans parody game and the 20th episode from this series. This time, the main theme of the game is Halloween and Raven is the main heroine. She’s sitting on a broom while she gets fucked in the pussy doggystyle. The wild thing is that Raven starts to enjoy it and she starts to become an absolute sex fiend that loses her mind and only cares about cum. You will also have full freedom to customize her basic looks and styles, so you can alter her in whatever way you want. Make Raven submit to you sexually and by the end, you will be able to watch her scream ‘Azarath Metrion Zinthos’ to orgasm.
544.5K 75% 36Recommended Flash
Hero Sex Academia
Step into an amazing game where famous characters from Marvel, Anime, DC Comics, and more come together in a world full of superpowers. You play as an 18-year-old about to start at Heroes Academy. Here's the catch – you're the son of the mightiest hero, but nobody knows where he disappeared. Explore the academy, meet cool characters, and uncover the mystery behind your dad's vanishing act. Get ready for a thrilling adventure as you learn and grow alongside these iconic figures in a world where every corner holds a new super-powered surprise. You know it's going to be a blast when superheroes fuck!
1.1M 72% 87Recommended Ren'Py
Lust Goddess: The Game (Sp0ns0red)
Assemble your unique squad of sexy mercenary girls. Earn their love and trust, and they will show you their gratitude by bringing your wildest and lewdest fantasies to life! Play Free Now!
200K 100%
Virtual Date Girls: Crystal part 2
Sometimes, first dates can get really messy but not with this one. Turns out your first date with Crystal was really great and you left quite an impression. If we are being honest, you really liked her and that's why you asked her on a second date. Of course, her beauty and sexy body are the main reasons you are meeting again. You just have to taste it and if everything goes well, devour the entire cookie jar. But before then, go to her new house, look around and see if you can find the best place to fuck her sweet wet pussy. There are so many places you can get laid, make sure you own her in each one of them.
611.2K 61% 60Recommended HTML
Succubus Again
Every time you see the word succubus, just prepare yourself for a never ending sexual experience. This sex game is centered around a succubus girl and a hot male character. She is always thirsty for rough fuck sessions. She also has some shape shifting abilities and transforms into a female model. She has been on the cover of a magazine and has some tricks up her sleeve. After some talk she body shifts with the guy and both transform into each other. Imagine switching to a different body. Crazy, right? Anyway, the game starts with a male being in a female body.
518.1K 60% 7Recommended Flash