Well then, she can go down in the pool

"How long can you hold your breath, sweet one?" you ask her. She grins and slips beneath the water. You feel something warmer and tighter than the pool water on you as she closes her mouth on your cock. You back her up against the side of the pool so that she can brace herself. She comes up for air every once in awhile, but you are impressed and pleased by her lung capacity. She'll make a good cocksucker with some practice. After she licks your balls a couple of times, you pull her up out of the water and kiss her.

"What a good, good girl," you praise her. "You give head like a champion even underwater." She beams at your compliment. "As your reward, you get to pick how I take your virginity." She gasps with excitement.