I have a sister, and my boyfriend always pretended he only looked at me, but well, we all know that’s not true. You’re a guy! And she’s young and pretty, just like me. So initially, I just wanted to have sex with them as a gift. But my sister misunderstood what I was trying to convince her to do, so we ended up having a threesome.
And you know what, they’re still fucking. She’s practically his second girlfriend now.