These made me laugh:
"Why don't you get down on your knees and smile like a doughnut?"
"If you were a booger I'd pick you first."
"I'd like to kiss you passionately on the lips, then move up to your belly button."
"Fat penguin" (What!?) "I just wanted to say something that would break the ice."
"My magical watch says you aren't wearing any panties. Oh, you are? It must be an hour fast!"
"You must work at Subway, 'cause you just gave me a footlong."
"Do you want to go to breakfast?" (Sure) "Should I call you, or nudge you?"
Go up to a girl and say "Hi! My name is Haywood Jablomee"
"Do you know the essential difference between sex and conversation? No? Want to go upstairs and talk?"
"Excuse me, is your name Gillette? cause you're the best a man can get"
"Can I have your picture so I can show Santa what I want for Christmas?"
"Let's go to my place and do the things I'll tell everyone we did anyway."
"What do you say we go back to my crib and do some math: Add a bed, subtract our clothes, divide your legs, and multiply."
"Would you like to try an Australian kiss? It is just like a French kiss, but down under."
"I have a six inch tongue and I can breath through my ears. "
"When God made you, he was showing off."
"Love ain't nothin' but sex misspelled. "
"Hey baby, is that a keg in your pants? 'Cause I would like to tap that ass! "
"Could I touch your belly button...from the inside?"