Wife's younger sister lives with us but I'm afraid my attraction to her sister will ruin marriage? Help me!!

Let me just say right from the start I haven't physically cheated and won't cheat. I love my wife. I know it's long but please read and give your advice. I need to talk to somebody about this. My wife and I are both 23 and dated since 11th grade and been married for almost 3 years. Her younger sister turned 18 this year and wanted to get out of her parents house so asked my wife if she could rent the extra room we have. We needed money so we said yes. My wife's sister is a beautiful young lady and her looks remind me lots of how my wife looked at 18 but until recently that hasn't been a problem. Problems started two weeks ago when the sister had some friends over and they were acting really goofy daring each other to do stuff. Her sister was dared to moon a guy so she mooned me flashing her bare butt. I don't think she meant it to be sexual but she had her underwear pulled down so far and she bent over enough that I saw every detail of her perfectly shaved vagina. I could even see a drop of wetness right at her entrance. This made me so horny even though I didn't want it to. Ever since then I've been having fantasies of her perfect butt and me penetrating her tight wet vagina. I can't get the image of her out of my mind and seeing her daily does not help. I feel so guilty about it because I feel like I'm cheating in my mind. I keep having to masturbate after seeing her sister around the house now so by the time I'm alone with my wife I can't get hard anymore. Her sister walks around the house in tiny booty shorts and just a bra a lot so it's hard not to think of her sexually. I want her sister to move out because this will ruin my marriage but I can't tell my wife why she has to move or my wife will probably freak out and things might never be the same. I think if I didn't see her sister for a week or two and rarely after that everything would be back to normal for me.
Updates:
+1 y
I told my wife today that her sister should wear more clothes around the house because I really only want to see and think of one woman naked in our house. She said she will say something to her. I think she knows now I've been attracted to her sister but she doesn't seem mad. We're also going to stay at a hotel/spa deal this weekend alone together and I asked her to dress up in her sexiest dress because I'm taking her to a nice restaurant. I'm hoping to reignite some passion between us.
+1 y
I'm afraid images of her sister might still pop in my mind during sex though and unsure if I should just let go and let it happen if it does happen?
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Most Helpful Girls

  • I suppose lust is normal this early in a marriage but you've taken it too far by indulging in fantasies of her that are effecting the way you relate to your wife. Hint to your wife that her sister is being too open, say hey why does your sister always walk around the house in her underwear, its a little inappropriate, most women will be able to pick up on these clues and realize that their sister is becoming temptation and shell fix the situation. If that doesn't work tell her that you want your space back and want to go back to living alone with her. Tell her its healthier and more normal for your marriage if you had your privacy back.

    • Thank you so much for answering

    • your welcome, good luck.

  • Why not save that energy/horniness for when you sleep with your wife. As long as you don't call your sister in-laws name no one will ever know who you are thinking about. After a while it should go back to normal or try to find another 'obsession' until you get over her. A p*rn star or something. Or try to get your wife to try something new in bed or buy her some sexy lingerie, nothing that remotely looks like something sis in-law wears though. Your wife might clue in. Take your wife to a b&b for some time alone.

    • I just feel so guilty though, imagining her sister while we're have sex. I already did it once because I couldn't help it but afterwords I had trouble looking my wife in the eyes. I might have to do it though to save our relationship and to keep my wife from getting hurt. I need to think of a way to get her sister out of my house though because long term the guilt will eat away at me. I know I wouldn't like it if my wife imagined I was a different guy so I feel guilty doing that to her.

    • I think trying new things and vacations would help a lot but vacations are hard to come by, we need money. Trying new things in bed is what I'll go for as a short term fix.

    • Why would you feel guilty? How do you know your wife is always thinking of you. You don't know that for sure. We are human and we all desire other people at some point or another as long as we don't pursue that desire we are good people.

    • Show All
  • hard to believe a guy is complaining about a hot girl showing her p**** to him, lol. my gfs do that stuff to my dad and his friends all the time. he doesn't seem to mind.

    • Ewww.. WTF. Your age says 16 so if you're telling the truth your high school girl friends are flashing your dad and you think that is all good? I guess if your dad is no longer getting any from your mom and she's fat and old it's nice for him to see some young p**** but you girls are way too young to be flashing guys. You know if your dad took a picture of that he would go to jail if caught? Someday when you're older you'll realize how messed up this is.

    • its just having fun. we love showing off, and its not like we're havin sex with them, lol.

Most Helpful Guys

  • So her sister looks like your wife when she was18 and now your both 23. Damn what does she look like now an old grandma, 18 to 23 is not that big of difference, unless of course there is something else going on with your wife.

    Maybe she let herself go alittle, doesn't have that toned body anymore, what did she stop shaving, there has to be something else going on with your wife, if you think you wife looks so much different from when she was 18 and now only 23.

    If this was really a problem for you, why didn't you tell you wife, oh by the way the other day your sister mooned me, and well it wasn't just the moon I saw.

    • My wife is still hot to me but no she does not look like she did when 18. She's not fat by any measurement but her butt filled out a little and her skin isn't as perfect as it was. I don't look as good as when I was 18 either it's just part of aging. I'm not going to tell my wife her sister mooned me because I know her sister was just goofing off with friends and probably didn't think about how much I could really see. I don't want my wife and her sister to get in a fight and hate each other.

    • Oh so then just tell hey honey, ya your not doing it for me anymore, and well I want to have sex with your 18 year old sister. So tell her to move out.

    • Whatever

  • I totally feel your situation. I think you have to talk about your wife and explain it the situation. the probably understand it and send her sister back. You have to control yourself. Sister in laws are always so attracted. They have a big sex appeal. It totally natural but for your marriage life you don't have any option..you have to forget it. Not lucky enough to f*** your sil. Be patient everything fine when you talk and share. Best of Luck.

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What Girls & Guys Said

1 5
  • Honestly, I think you should probablly tell your wife t oask your sister to cover up a lot more an if that doesn't work then she probablly needs to go spend a week or two at a friends house.

    • I agree

  • Send her sis to disney land or somewhere else for a week. Tell your wife you wanna spend some time with her, alone.

    You have (and you can) to control yourself. Just tell yourself its wrong to think this way.

  • have sex with your wife like you would with her sister ;D

    • and ask your wife if you can call her by her sister's name! ;)

    • ba dum tsst

  • Well it's wrong but I would I'd risk it

  • Ask your wife if you can have a threesome lol

  • Had the same problem, I took it to the next level and did her sister. But she was an older sister. Very attractive woman.