My sister in-law

I'll trade you your sister-in-law for my sister-in-law.

You'll be in for a rude surprise!

Well if she was knickerless she may have wanted you to see her pussy as she may just fancy you as well as your husband ?? have you ever noticed her looking at you ? ever thought she might be sniffing your panties or she has left her panties where you might find them ?? Keep an open mind on these things but if I was a betting man I would say that they are fucking each other.

Interesting! They are unlikely to be running away together, so if it is what you think, it's probably just up to you and you tolerance. Maybe all they need is an occasional fling to cement the closeness!

Maybe she is not his sister.... Maybe she is adopted?

A. he and she were fucking before you came along. B. they have a sexual relationship that transcends marriage. C. if you divorce they will still have their relationship. D it in no way will have any effect on your marriage , it cannot . you can ask to watch and join in thats your right but they have a right to say no. i guess you had no brother to mess with when you were young i dont know your situation . i had no sisters so i did as many cousins as i could. is this infidelity continuing sex beyond marriage? well, it is sex but its not cheating and the marriage was the cheating part , they will always be brother and sister. can you accept that? its up to you. you know one time my ex wife hopped into bed stretched out and wet and had me fuck her. i guess they had sex while i was asleep .I guess she didn't get off and was still horney , who knows , the thing is i at the time suspected she had cheated at work. i still got off so sharing a woman is not as bad as no woman at all. i could feel his cum all over my dick normally that would just sicken me but now im grateful that we shared her and we both enjoyed having sex with her on the same day thats all it really means.

I feel sorry for you, if you confront them you could be perceived as being dirty minded on the other hand it is quite inappropriate, probably innocent but a bit rude. Mention to your husband that you felt uncomfortable. My sister in law a bit weird too, always trying to exclude me and send me picture of my husband and her cuddling. Says things 'my wonderful brother I love you soo much' yuk, they gross me out.

May be she wanted a threesome

have they done this b4?

She's clearly being inappropriate with your husband. You should confront both of them immediately.

thats nothing , i walked into a living room and saw my brother-in-law doggie in my wife. he slip up his sweat pants real fast and pulled her panties over her butt hole . she said he was helping her find somthing under the couch. bullshit i caught them . i would have watched if they had come clean with me .

what is sister like. agw. hair.figure .tits.hairy or bald?

You mean she was fully naked with only a transparent gown ?

It all depends on where they are from and how they were raised