He examines the nice red marks left behind. Nothing that will stay too long, and no lasting damage. He strokes Felix's back again.

"That's it. It's over now. Come on, give me your hands, all right?" It's an ask instead of a command, and Byleth takes a moment to tie that softer rope around Felix's wrists, wrapping it down and around his chest, then his thighs. Just tight enough to leave red lines but not to cut off circulation or be painful. He examines his work, turning Felix over onto his back on the bed and propping a pillow under his head. Two fingers fit under the rope- good. His hand splays on the man's chest, stroking languidly down his belly, then back up. "See how nice it is when you're good?"

A kiss, warm and hungry, and those wandering fingers catch against a nipple, rolling over it, teasing it until it's hard under the leather of his glove. He breaks the kiss, only to trail more down Felix's neck and chest, capturing the other nipple between his lips and flicking his tongue against it.