Sulu made a surprised noise at the sudden move, tightening his hold as Ianto pushed him backwards and effectively pinned him against the couch. He hadn't expected the other to take control, much less take over like this, but Ianto was kissing him so eagerly and Sulu really couldn't find it in himself to complain, though he had to resist fidgeting.

The kiss ended just as suddenly as it had intensified, and Sulu realized probably only moments after Ianto did that maybe this was just a little too much for them at the moment. Sulu stroked Ianto's hair with one hand, his other sliding up his back more so that it was in less of a flirtatious area, and more of a comforting one. He had to blink at the apology, though, because honestly? That had been totally all right. Maybe not in the long run, but at the moment, at least...

"Hey," he said quietly, "Don't worry about it. I'm not complaining." After all, he wasn't clambering to escape Ianto's grasp, now was he?