A couple of years ago, I was dating this single mom, age 38, and I met her daughter, age 18, about 2 months later. Daughter liked to flirt a lot, which didn't seem to bother her mom much. Daughter was suppose to be spending the night at a gf's house on a sleep over, so her mom and I were fucking on the couch about 2am and daughter walks in on us. The only one who seemed to be bothered by this was me ... I was embarrassed to be caught fucking her mom. Mom said we could be "adult" about it and not make a big deal. Daughter said she wanted to fuck me, and her mom said ok. In fact, mom helped put my dick in her daugher's pussy.