This post may contain Mildly Adult content.
Mildly AdultAsking
Only logged in members can reply and interact with the post.
Join SimilarWorlds for FREE »

I slept with my boyfriend's ex sister in law. I don’t know how to tell my boyfriend.

The title is really rocky and not a joke at all. Everything was a mistake and was not on purpose. I am 44 year old divorced woman. I have a son.





I moved here in this small town about 29 months ago. I moved here because is very near my son's boarding school. About 27 months ago i started dating this divorced guy. His ex wife is an addict. She is addicted to cocaine. In 2018 she was sentenced to 3 years in prison for credit card fraud. They divorced. She served 2 years. My boyfriend has full custody of his daughters.

About 15 months ago i started having sexual experiences with other women. I love my boyfriend to death. He's the most sensitive, caring person that I've ever come across. My boyfriend is okay with me actually being with a woman or having sex with one. he says it is not cheating and explains that he does not get jealous over women , the reasoning being that he's not that well-versed and educated in sexuality. his distrust in men in general (being pushy with flirting, pursuing, etc.) is what makes him feel more jealous. My boyfriend is extremely jealous of guys, even the ugly ones! "If ANYONE could steal my big ebony girl, it would surely be another man" he says often. .

About a month ago my boyfriend's ex sister in law moved back here in her hometown. She is a 43 year old short skinny mousy pale divorced bisexual woman. 5 days ago she walked into my store. She was really friendly and so was I because I wanted to make sure that I was cool with my boyfriend's daughter's aunt. . After talking for a while we swapped numbers. Nothing serious. The next day she texted me.

We decided to meet up again and get some coffee. I told my boyfriend me and his ex sister in law were hanging out and he was ok with it. After we got some coffee we walked around and we both went back home. I decided to go to this neighborhood women's party that night. When I went with some friends I saw this woman my boyfriend's ex sister in law. She was with some of her friends. We made eye contact and she walked up to me. After a few cocktails my memory and vision were very blurry. I asked her if she could give me a ride because my friends weren’t ready to leave. She agreed. When we were driving she needed to get something from her house and I needed some water so we both went in. When we were in she started groping me and kissing me and I kissed her back. We soon went up to her room.

I don’t know how to tell my boyfriend. My boyfriend is okay with me actually being with a woman or having sex with one, but this is differen't . She is his ex sister in law. And he kinda hates her. Also she is his daughter's aunt , and they kinda hate me. My boyfriend’s daughter's nickname for me is giant overdressed cow. They are very rude to me. His daughters ignored me for a while and then they started to be very rude. They would make offhanded comments about me, insult me, and told me that I am a giant , arrogant, overdressed cow. They tend to just call me a giant cow.
This page is a permanent link to the reply below and its nested replies. See all post replies »
faery · F
This is both no big deal (by what you say about how he feels about you having sex with women) and probably what will undo you two in the end
This comment is hidden. Show Comment
This comment is hidden. Show Comment
LaLa81 · 41-45, F
@faery I know I need to tell him the truth, but I’m terrified.
LaLa81 · 41-45, F
@faery I know I’ve made some terrible mistakes, but I do love him deeply.
Strictmichael75 · 61-69, M
@LaLa81 Enjoy it
It’s your choice
DragonFruit · 70-79, M
@LaLa81 If you feel a kind of addiction to having sexual experiences with other women, you're not exactly straight.... know this from my own sexual experiences with men.
For a while, I viewed myself as mostly straight...but with a desire for sex with other men, I viewed myself as bisexual for a number of years.
Eventually I came to the realization that sexuality is fluid and that over the tears I gad become more sexually attracted to men and less sexually attracted to women.
I presently call myself gay...but I'm not ruling out another term because I still can see the beauty of a woman's body, and I don't think it impossible that I might find another woman who I'd want to have sex with.
The labels can change and so can your defined sexuality....just be who you are.
This comment is hidden. Show Comment
faery · F
@LaLa81 You're straight (hahaa) up in denial
This comment is hidden. Show Comment
faery · F
@LaLa81 You're bi, hetero leaning. Nothing wrong with that, just try to stray a little further from home, maybe, next time.
@LaLa81 nothing wrong with liking being attracted to women. Just understand it’s inherently in your nature to be have fluid gender identity and you are comfortable being sexually attracted to both sides of the equation.
Now key to addressing this is finding someone who can compliment your personality and your needs without criticism or compromising on your behalf. At 44 you have learned a lot of valuable lessons about yourself. Let that be your guide going forward into the next chapter of your journey.
Wishing Your All the best in 2026
LaLa81 · 41-45, F
@Briggett thank you
@LaLa81 you more than deserve and welcomed check your inbox on here