The thought of Lilia crossed Kevin's mind and hesitated for a moment. He'd imagined her as a mermaid more than once. Unfortunately, their relationship seemed to be going nowhere. He and Gisela had hit it off before and now again tonight. The two of them seemed to have much more potential. And if it didn't work out when would he ever again get to have sex with a mermaid?
Kevin pulled Gisela into a deep kiss, which she eagerly returned. Their bodies pressed together in the warm, swirling water and Kevin's hands explored Gisela's mermaid tail. She loved the feel of his touch on her scales and eagerly impaled herself on him. She moaned as she did so, this being her first time having sex as a mermaid. The two worked on a rhythm, Gisela's tail slapping with delight against the bottom of the hot tub. It was a slow build of their mutual pleasure until they both orgasmed, Gisela's being especially intense.
They cuddled in the afterglow, but soon realized their mutual exhaustion. Gisela put the necklace on and her tail slowly split into legs and her scales faded into skin. Kevin and Gisela dried off and made their way to the hotel room's bed to sleep.