This was about to fall apart fast if he didn't get inside of her soon, because wasting this on the bedsheet was going to irritate him. "You will...promise..." he mumbled as he switched to the other, trailing his tongue just under the arc reactor and over to sweep her nipple in his mouth. He tugged just a bit then moved his hips between her legs and arched just enough to let himself slide inside of her with a loud moan. "Oh...Jesus...fuck." And he had to still himself when he was fully inside. It'd been so long and she had gotten so tight again in the time being. His face probably showed how much he was trying to hold back as he let himself climb back from that edge.