It's not that he's insecure -- himself or in them -- he isn't; but he's still human. A little validation never goes amiss, and Steve's response is more than enough. Sam bites gently into his lip as the garment is tugged up and off, revealing firm, smooth skin for him to explore. Possess, more like, since he's already more than familiar with the planes of Steve's flesh. His fingers sink in with a sense of reverence, long eyelashes fluttering as he glances back up at Steve, returning his smile easily.

"I missed you, you fool," he chastises, placing a dry kiss in the center of Steve's chest, fingers running gently down his sides. "Again?" Because he wasn't kidding, he'd say it as many times as Steve wanted to hear it.