IIN my wife is ok with me having sex with her sister
Wife asked me in bed one night what was my favorite fantasy. I told her a threesome with her sister. About a month later she told me she couldn't have a threesome with her sister but I could have sex with her as long as u told her about it. Her sister and I meet twice a year around our birthdays for mind blowing sex. I tell my wife, sister in law believes we are both keeping the secret from our spouses.