He froze, more than a little shocked at what he saw. Of course he heard them a corridor away and came running. Of all the things to happen now and with all the people with. This was not a situation Remus wanted to put it. It was bad enough getting into that argument with Snape, but to see him like that.

"Sirius!" He yelled, jogging up to the two of them. "Get off him now. What the bloody hell are you doing?"

He couldn't look at Snape. Remus also couldn't look at Sirius either. What he was threatening, regardless if he'd actually go through with it, was beyond wrong. Something in his stomach churned, but he still couldn't look down at Severus. They weren't out of the water, yet.