Sirius pulled Remus’s shirt off him, too, and their lips crashed together again, their bare chests meeting, hot and hard. Sirius ran his hands up and across Remus’s back, the skin practically sparking underneath his fingers, and he walked Remus backwards until his legs hit the window seat. He stumbled back and Sirius took his opportunity, pushing him down and straddling his lap, sliding his knees over the cushion on either side of Remus’s hips, opening his legs, and pressing hard against him.