Before the act of sexual intercourse, shave off all your pubic hair and keep it in your hand. Fuck your partner doggy style and when ready to climax withdraw and spit on her back. She turns over, thinking you are finished, you cum on her face and throw your pubic hair in her face and roar like Chewbacca.
Person 1: He has a really sick star wars fetish
Person 2: What do you mean?
Person 1: He chewbacca'd her