On your girlfriend or wife's birthday, you buy her favorite birthday cake and feed it to her. About a half hour later, you have sex with her doggie-style, and while penetrating her vagina,you stick a ping-pong paddle, or other flat, round shaped object, into her anus. She then takes a dump that comes out in the shape of a cake. You flip her on her back, placing the "birthday cake" on her stomach, adding a lit candle or two. You then fuck her missionary style, and when you cum you ejaculate "frosting" all over the birthday cake, also extinguishing the lit candles. Happy Birthday, Sweetie!
Tonight I'm going to give my girlfriend The Happy Birthday Cake!