It was a long day after a bunch of missions. You and Junkrat just got back from a long mission and Junkrat was completely covered with dirt from his explosives. And you being the clean freak you are, forced to make him take a bath. So now you where on your knees, right beside Junkrat as Junkrat sat in the tub. You rubbed some soap over his nub of an arm

“Oi! Careful, mate!..”

Junkrat pulled his arm away but then slowly let you touch his nub again and let you keep cleaning him