It wasn’t that Rose wasn’t a strong swimmer, she was; Rolf was just stronger than her, just like it wasn’t that she actually wanted to stop kissing; she just wanted to be in a place where the kisses would be interrupted by them sinking if they got carried away... when they got carried away.
As Rolf began to swim, Rose urged him onto his back, her own arms looped around his neck so he could use both of his. She liked this distribution; Rolf swimming them closer to shore as she kissed from his chest to his neck, her body sliding up along his. She paused by his jaw, nuzzling his cheek with a soft purr until her lips found his again. “Just ‘till you can reach the bottom,” she murmured, slowly teasing her tongue against his upper lip until she with a smiled licked into a kiss.