Rainbow kitten surprise
While having sex with your girl from behind you secretly sprinkle the marshmallows from Lucky charms into her ass. When she finds them later you yell "surprise!"
Yo I totally got Danielle with a rainbow kitten surprise last night!
rainbow kitten surprise
the sexual act of taking your girl, throwing her up into the air, smacking her ass, having her land on your cock, and putting a phat nutt right in her pussy
me: damn girl, you tryna get sum fucc?
her: aight but only if you rainbow kitten surprise me
her: aight but only if you rainbow kitten surprise me