He lets himself be pulled up, reaches out to carefully take the bottle from Ianto before it spills and sets it to one side. Then John's hands move up to skim under Ianto's tops, to paw at his stomach and around to his back. The feel of his muscles twitching only heightens how much John wants him, wants to make him squirm and he pulls back again after a moment -- presses kisses down Ianto's neck and mouths at his pulse.

"I want you," he murmurs, and he's pretty sure there's no ambiguity in there. "Let me do this."

Or, at least, let him try. He reaches down and teases his fingers along the inside of Ianto's thighs, waiting for permission to go back to what he was doing a moment ago.