When a man has sex with a girl on her period, he takes his dick out and rubs it on her lips making it look like The Joker from The Dark Knight. When she gets pissed, ask her "why so serious?"
While having sex you finger the girls ass and make sure to get her poo on your finger. When ready, you pull out (before during or after cumming as it does not matter.) and smear her poo from one cheek, across her lips to the other cheek. When she gets mad at you, simply ask "Why So Serious?".
I gave her the joker last night. After I smeared her poo from one cheek to the other via the lips she got all mad at me. So I asked her "Why so serious?"
A sexy stealth face blasting move in where you pull your "dork" out and blow your load in a smiley face motion on the girls/boys face and when they are just about to yell at you, you say "WHY SOOOO SERIOUS!?!?!?"
When you are havin sex with a girl while she is on her period and you pull out, wipe her blood on the sides of her lips into a smile and say "let's put a smile on that face."
a sexual act which involves a guy having sex with a girl who is on her period, then pulling out and dickslapping her on both sides of the face, resembling the joker from batman.