A pajama party with my sister-in-law and female friends that turned out to be extremely erotic! ! My parents remarried and I had a cute sister-in-law, but the good thing is that my parents weren't on a trip, and my sister-in-law invited a lot of friends over for a sleepover! Even late at night, they were having a lot of fun and it was noisy, so when I went to warn them, everyone was wearing no bras and was defenseless...