Something about that smile catches Duv's breath. The other man expresses himself far more than Duv ever does, but he's not sure he's ever seen Ivan's face light up that much before. It's a good look for him and infections, Duv can't help returning it with a smaller version of his own. He's here, with Ivan, and the reminder that Ivan wants to be here with him means more than he could ever express. Has anyone ever looked at him with such... want before?

The thought is enough to distract him from what Ivan is actually positioning himself for. The finger comes as a surprise, eliciting a small gasp. Confusion dons his face for a moment as he shifts, adjusting to the feel of something inside him.

"Strange, but not bad," he answers, gaze straying from Ivan's for a second to glance down between them. "It feels different."