The sight of Sirius Black crawling toward anyone would make them weak, but Remus is particularly susceptible, and he lets out a shaky breath, feeling those fingers brush against his bare skin.

"Y-yeah." His breath catches in his throat mid-word; damn his inability to keep his heart anywhere but on his sleeve. The hand on Sirius's knee slides up his thigh, and then goes for the laces of his breeches. "I do."