I think [M]y sister-in-law wants to [F]uck

My sister in law is visiting with her family for a few weeks and conveniently left her husband at home. She’s older than my wife, but in better shape since her kids are older and she works out regularly. My wife is more curvy, but something about her sister is just overall sluttier. Like I always thought she’d be more fun in bed.

We were all at the pool yesterday and when we got home it was a flash of wet towels and bathing suits and kids changing in just about every room so I managed to slip into my bedroom to get changed in peace. I thought I locked the door, but sometimes it doesn’t fully engage, so while I’m just dropping my suit to my ankles and standing stark naked in the middle of the room, of course the door opens and in walks my sister in law Liz. Now the interesting part is, while at the pool, Liz was very flirty and looking very sexy in her bikini. Despite being fit and petite with little tits, she still has a pretty amazing ass. And she flaunted it in my face every chance she got, even rubbing it up against my crotch “accidentally” as we both stood in the pool. So while I was changing, naturally I was touching myself a little while thinking about her. I say all this because at the moment she walks in, I was definitely sporting a semi.

I’m a grower, not a shower, and luckily I was half-mast when she came in. She stood there frozen, obviously looking down at my penis. Seeing her there in her bikini, hair wet, and obviously looking at my growing member only made me hornier and it started getting harder even faster. I’m about 7″ when fully erect, and I was well on my way at this point.

She looked up finally, made eye contact, and said “Wow. Rachel never told me about that” pointing down and then she smiled with the most mischievous grin. Then, she shut the door behind her.

We literally only had moments of barely privacy, but she made her move and I didn’t stop her. She stepped forward, grabbed it with her right hand and snuck her left hand under her bikini bottom to touch herself. I moaned – I couldn’t help it, and my cock tensed in her grip. She did a few more strokes, then let go and took her hand out of her pants. Without thinking I grabbed her hand and brought it up to my mouth, gently sucking her fingers and tasting her pussy. She liked that, and said “Wow. I have to fuck you while I’m here. Let’s figure out a way.”

“Ok” was all I could muster before she quickly opened the door and exited just as fast as she came in.

I’m conflicted now. Holy shit do I want to fuck her. But every part of me knows that would be a bad, or at least dangerous, idea.

I don’t think I’ll be able to stop myself if I find myself in that position. I guess we’ll see.

Source: reddit.com/r/gonewildstories/comments/vwj1da/i_think_my_sisterinlaw_wants_to_fuck

58 comments

  8. The danger is the best part. AND since you know you’re at least going to try stop agonizing and make a plan.

  12. “I think she wants to fuck” literally says “I want to fuck”

    Absolutely stereotypical dude right here

  13. Dude, as hot as it might be is it worth blowing up to families for a fling? Cheaters eventually get caught and hell will come down on both of you. You got lucky already do you want to push it? Words to ponder.

  16. “and she existed as fast as she came in” nice closing of the plot buddy.

    Talk to your “wife Rachel” and plan out for threesome, it’ll be good as this story 😉

  28. Well she’d likely be your best fuck ever (strange that’s related is always better), it’d put your marriage at great risk. Weigh the potential consequences.

  29. Do it man. She’ll be gone in a few weeks. If you can afford to lose your wife, do it. Once in a lifetime shot.

  31. How would your wife react if she finds out you banged her sister?

    Is she a cuckquean and would get off on knowing your banged her sister?

    Would she be tremendously hurt and any trust you have be forever broken?

    These type of secrets are often revealed, so better choose the best path based on how your wife will react.

  32. Don’t sneak around, perfect time is in the moment if it happens it happens if it doesn’t don’t push it. Life’s got a funny way of unfolding let it happen or stand your ground if you don’t want it to. Nobody can tell you what’s right but you but if you feel like you gotta plan it out you might be doing it wrong.

  33. Ngl if it’s real, it’s probably a test & she’s reporting back to your wife hahah

  34. Looking at your other stories, you’ve no qualms about cheating – and I’m not judging you here – but I find it strange you’re asking permission with replies like “do you think I should do it?”. It all seems a bit childish to me. I think we all know you’re going to when you get the chance, and I’ll look forward to the update.

  36. Let her make all the moves, it more exciting when she is the aggressor. Once in, take over and own her. Wear her pussy out. Breed her.

  38. careful cause ur wife could of put her up to it or her sister can always throw it in her face if the get in a fight!

  42. You have other stories posted where you cheated on your wife & showed no remorse, what’s stopping you now except that you might actually get caught this time.

  43. Put her on all fours, fuck her senseless, and cum down her throat. Show the bitch who is boss and she will come back for more with a wet pussy.

  44. Clearly they share things, you even said, that she said “she didn’t tell me about that”. Dude it’s a trap, is a lifetime of guilt worth it for 2 mins of joy?

  46. Ask your wife what she’d do in that situation. If she says she’d fuck her sister then you’re good to go.

  50. there’s a high chance that she’s gonna tell your wife after the deed is done and it’ll be too late.
    you’ll be filled up with guilt and regret

  52. Pray to God about this and He will help you through this difficult time.

  57. I wish this could happen to me with my sister-in-law. I have always had a massive crush on her, and there’s light, friendly flirting, but no big indicators that she’s sexually interested.

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