Rollin' Rollin' Rollin'

Jane has a crush on a t.v. character. It's cute, really, but also kinda weird 'cause the guy totally looks like her brother. "What the hell is so cute about him?"
"Everything, really. Except maybe his chin. He doesn't have much of a--- What are you doing, Brian?"
"Nossing." I stuck my lower jaw out as far as it could go, perhaps just giving the appearance of a strange underbite.
"Oh, please. You have a chin."
Satisfied with her answer, I retracted my jaw and went back to watching the program.
Jane mumbled, "In fact, you have two."
"Hey," I recoiled, "I heard that."
"Well, when you pull your head back like that, you have six."