Threesome with my sister

It was my boyfriend's birthday a few months ago, and I treated him to a night of whatever he wanted in the bedroom. As a joke, he said he wanted a... Show More

Most Helpful Opinion

  • Once you do something like this, you can never undo it. If you or your sister remembers this as a bad thing in the future, your relationship with your sister is shot. If it were some non-relative, it would not matter if things fell apart, but your sister? Think long and hard.