A man picks up a cute little number in a bar and convinces her to come back to his hotel. After they're done screwing around he asks, "Am I the first man you ever made love to?"
She looks at him thoughtfully for a second before replying. "You might be... your face looks familiar."
My wife was angry. She said: "It's unfair! A guy can screw a different girl every week and he's considered a stud. But if a girl screws even two guys in a year she's called a slut."
So I man-splained it to her: "Think of it this way. If a key opens lots of locks it's a master key. But if a lock is opened by lots of keys... well... it's a shitty lock."