Stefan might not be a submissive, but he knew how to submit--and when. And when Damon was in a mood where he felt like he needed to reassert his superiority, Stefan submitted. There was no other option. And over time, he'd learned to enjoy it, to even crave it.
He went lax in Damon's grip, and tilted his head back, exposing his neck, his legs parting slightly in invitation.
"There's a pair of handcuffs in the nightstand drawer," he drawled. Though they both knew that handcuffs were a symbolic restraint. Sometimes his brother enjoyed the visual.