"You wouldn't," Jon said. "Especially since you think Sarah's way too thin. You're only attracted to chubby girls. The fatter, the better."
"You're right. Fat girls are sexy."
"Like that one over there?" Jon asked, pointing to a 20-something girl, who appeared to weigh at least 200 pounds.
It was strange, but Jon could see a bulge growing in Biff's pants. He was actually turned on by the girl.
"You want to ask her out on a date."
"Yeah, I do." Biff let go of Jon, dropping him to the floor. Then he ran over to the chubby girl.
"Hey! Where are you going?" Sarah asked. "Aren't you gonna finish him off?"
But Biff was ignoring her. He had other things on his mind.