Hannibal sets his scalpel to Ganymede's nipple, and gives it a twist, sending it into a spiral, then sideways, back and forth.

He peers at it, eyebrow raised. In a thin line of blood, hardly more then a scratch, there's a small snail sitting on Ganymede's chest, with the nipple as the center of its shell, which extends outwards in that spiral through and around the areola.