"You have to make me orgasm multiple times, with your cock in my vagina, but you have to show you can control your own orgasm the entire time..."
He looked at me not understanding what I was saying.
"To put it plainly," I said, "You have to fuck me and make me cum multiple times, but while you're doing that you have to hold back and can't cum yourself!"
His eyes went wide.
I figured this way I'd have fun even if he did pass; if he was man enough to give me multiples vaginally, then that would also be something special, even if it wasn't as special as finding a slave.