Mark and Ben were sitting there watching a chick-flick in the dark.

After a while Mark notices Ben shifting and twitching.  A lot.  With sound effects that interfered with the movie dialogue.

Mark finally turns and asks, “Ben, what the hell are you doing?”

Ben answers, “It’s this movie… I’m getting in touch with my feminine side, man.”

Mark pops his friend on the shoulder and says, “No, dude, stop that.   First of all, that’s just your prostate.   And second, if you don’t stop, the usher will kick us out of the theater.”