Oh fuck, the way you and your asshole friends fucked my loser boyfriend up has me so fucking wet! Next time steal his wallet and I'll let you fuck me, he's too much of a pussy to call the cops on you!
Your boss is old, he's pale, he's sweaty, boring, and generally unattractive. But most of all, he hates your guts and treats you like crap. Which is why your sister lets him do whatever he wants to her
"I just met your girl after work and took her home. She was a little shy and hesitant at first, but I am teaching her how to suck my cock since a few hours. I'll let her go when I'm empty. You should be thankful that someone finally takes care of her."
At parties your boss always boasted that he could make any woman spread her legs for him. In a drunken state you bet, for a substantial raise, that it wouldn't work on your girlfriend. It took him one hour, and she didn't let him pull out.