If Gabe drifted a little closer after losing all that William-contact, it was only a little, and totally just the movement of the water. Any (and all) other options were best saved for... reconsideration of this at a later and far more discreet date.
"That would be acceptable," Gabe agreed, low and still a little rough from swallowing water and laughing his arse off. Acceptable, but yes, obviously nowhere near as fun as other far less dignified options. But the faculty had had as much of a free show as was good for them, so Gabe just nodded, nudged William toward the side of the pool with his shoulder, and said, "I'll even give you a leg-up."