Having sex with a girl from behind, and finishing on her ass. After you've finished you use a rubber spatula to evenly distribute the cum on her butt cheeks, as if it were icing on a cake. When this is complete you may stick a candle in her butt hole and light it. Finish off by putting on a birthday party hat and you have successfully completed The Birthday Cake.
"Dude, I gave Steph the birthday cake last night!"
"Oh that's nice of you dude, was it red velvet or...?"
"No dude, I came on her butt and smeared it with a spatula."
"Oh that's nice of you dude, was it red velvet or...?"
"No dude, I came on her butt and smeared it with a spatula."
by B Hayes April 15, 2013
Get the The Birthday Cake mug.When you make a cake and rub the left over frosting on your girl's tits, then titty fuck her. Then she sucks the frosting off your dick like she is blowing out the candle.
by sockmonkey 379 April 11, 2013
Get the the birthday cake mug.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!
by lovemyelie March 24, 2011
Get the The Happy Birthday Cake mug.