Sandwich Code

Me and my girlfriend were planning on having sex, but I said me and my little brother share a bunk bed and he’s on the bottom. She said tell him we’re making sandwiches so we came up with a plan. "Tomato" means harder and "cheese" means faster. So we were having sex and she was screaming, "Tomato, tomato, tomato, cheese, cheese, cheese," then my little brother said, "Can y’all stop making sandwiches? You're getting mayonnaise all over my bed."