Ooh I got one! I made it up actually. But you kinda have to be a Harry Potter nerd if you wanna use it and I'm gonna use a scenario kind of thing so that you can understand it better okay? Here it goes:
*I'm wearing Slytherin colors and see the girl I like wearing Gryffindor colors across the room. I want to talk to her but I can't cause she's with the enemy house. But I don't care and so slowly, walk towards her before stopping in front of her. She looks up surprised*
Her: What?
Me: You wanna know something interesting?
Her: *looks confuse for a sec* Umm okay what?
Me: You know how ever Slytherin needs a Gryffindor?
Her: Yeah. What about it?
Me: Wanna be MY Gryffindor?