It's a sure thing that every male student in your girlfriend's class has probably jerked off to fantasies of her before. What you don't know is whether they've done more with her.
“Thanks for agreeing, I’ve always wanted to be fucked by all your friends in public while you watch me! Of course you can’t touch yourself though because we’ll tie you to a rock.”
Times are tough and your pretty wife had to take a second job cleaning a rich white guy's mansion. What she didn't tell you was she spends more time on her knees polishing his knob than doing actual cleaning.