While receiving oral sex, right before you climax, tell your partner to stop. When she asks why, you give it to herin the face. You then snap your fingers and point down at her and yell "psyche!"
You get a girl drunk that you just met at a hotel on Spring break. Take her down to the beach to fuck her and have her put the condom on so she thinks you're wearing one. But right before you stick it in, you swoop down and pull the condom off. You fuck her, cum inside her, and then get up and throw sand in her eyes. Run down the beach screaming, "You stupid bitch!" So the idea is that you leave her blind, drunk, and pregnant.