While you and Amy are doing your makeout session in the running shower, neither of you are aware of another person entering the adjacent locker room. The day before Lana forgot something important here, something embarrassing. Her plan was simple. First, pretend to feel unwell so the teacher allows her to go to the toilet during the lesson. Second, make a detour to the shower lockers, get the thing and stuff it into her purse. Finally, return to the classroom with anybody none the wiser.
Determinedly she makes her way to her locker and finds the object of interest inside, her panties. Now nobody will find out she accidentally went commando for half the day yesterday. It’s then when she notices the noise of running water. Wanting to do her part in saving the planet, she makes her way to the showers. Only right before the door does she notice another sound, something akin to meat slapping together. A naughty grin grows on her face. Someone is getting her fill and Lana’s curiosity will only be sated once she finds out who and, more importantly, with whom. Carefully she slips inside and tiptoes across the wet, tiled floor. Peeking around the corner her eyes go wide at what she sees.
There are two female figures apparently having sex. But most importantly, they have fish tails instead of legs, so are those mermaids? The one on top with the flesh-colored tail has a familiar mop of red hair on her head. Is that Amy? Some classmates were wondering why she was missing class when they supposedly had been seeing her enter the school. Lana doesn't recognize the girl below Amy, but it obviously can't be her boyfriend.
She continues watching with intrigue and obvious arousal as the two mermaids first start to suck each other's breasts and soon after both reach their climax. As they separate Lana sees another important detail, the mermaid that looks like Amy has a second, smaller tail coming out of– that's a dick! And quite a sizable one at that.
Lana has reached her tipping point for weirdness (though a small part of her is wondering how that penis would feel inside of her). She has to get out immediately. But in her haste she slips on the wet floor with a yelp and knocks herself out on the ground.
You and Amy stop your cuddling when you hear the scream and immediately go to investigate. Or rather you awkwardly slide across the wet tiles. When you find the unconscious Lana, Amy checks her body without hesitation. “She's alright. No wounds, just a bump.”
“Do you think she's seen us?” you ask. “What should we do now?”