I'm going to take advantage when a girl invites me over.
What do you mean "take advantage"?
It means I get to get laid. I hate monogamous relationships.
It's rude to deceive people for your own selfish ends just to get laid. She doesn't deserve to be exploited.
You are being too judgmental here asshole.
Well, first, it's not nice to call people asshole so I would suggest you refrain from that. Second, its okay to like sex, but she is being nice to you and you're using that to get close to her for selfish reasons.