A combination of the houdini
and Abe Lincoln
. When having sex with a girl from behind, you spit on her back or find some other way into making her think you've ejaculated on her, then cover his face in man juice when she turns around. You then throw pubes on her face (pre-cut or ripped out mid-intercourse if you're manly) which will stick to the semen, giving her an Abe Lincoln beard.
I gave Macee the old Magic Abe last night...needless to say, she'll probably never take her eyes off of me while we're fucking again.