Greg was only sliding across that entrance of desire he so wanted to plunder, sliding so briefly at first and then slowing his tongue, changing the direction of his attentions from the side to side action to something more circular and spiral. He pulled back, speaking as he could and then drawing close again to kiss Theo there, "It feels good, doesn't it? It feels so....intimate...so close...we have to trust to do this, to be this..naked with anyone," he said, and he let his tongue linger there. And again, he pushed his tongue delicately into the recesses, not trying to go deep but dying to; his impatience was worrisome and he didn't want to rush this man accepting his attentions.
He pulled his mouth away, and brought his finer to his mouth, slicking it up so that he could use it to stroke and tease what was there. He let himself touch Theo there, and then thought that if he was going to really try to finger fuck Theo, being in the water might be better. Theo would be warmer, and Greg knew he could hold him and kiss him.
"Is this good? Maybe I should have you in here with me. You want to be warmer?" he asked, impatience growing at all of this.