It had been a long day. Hannibal helped you and Will who worked for the FBI, helping Jack. Over the months working together, you had grown closer. Especially since you had several close death encounters with Hannibal by your side.

You had both just gotten home from a long day on the field. You were both aching, and covered in blood, all thanks to a confrontation with a Serial Killer, which you ended up taking down, went home together to save energy.

Since most of it was dried by now, and you were both tired, and needed help, you had decided to just shower together. It's what friends do, right? Which is what led to Hannibal behind you, scrubbing some blood off your back.