[Kuromahou Kenkyuujo (Nukaji)] Tropical Bitch 2 (Tropical-Rouge! PreCure)

A mermaid adjusting to life on land gets a very thorough lesson in "human mating," gasping that she never imagined it could feel so good while an oversized partner leaves her stomach visibly distended with every deep thrust. What begins as a classroom dare — one girl flashing an R-18 packet like an invitation — builds toward a hotel-room rendezvous where her secret nearly slips mid-act with a flustered "HUMAN?" and a scramble to cover her blurted secret. By the close, the girls are wrapped up in each other's arms with sunny grins, promising this sun-soaked little misadventure has plenty of heat still lurking beneath the surface.