His eyes are wide, watching her without blinking. Her eyes are reacting more like one of theirs, and it would fascinate him if he could focus on that. For now, noticing it is an achievement.

He feels her body tightening around him, sees her gasp and falter in her rhythm, stopping just shy of climax. He gives a high groan through his labored breaths, his hands tightening on her hips.

"Go," his rough voice manages through the smile on his lips, "Just go..."