Your family had a doctor friend over that the house for dinner one night and you were sitting next to your brother, Donny, Donny had always been annoying, but especially tonight since there was a guest. As everyone was eating and chatting you brought up anatomy to the friend and Donny glanced at you smirking

Donny: "Please.. You know A LOT about the body.."

He said, making a hand and mouth gesture of 'sucking'