At first the sight of Amy’s penis weirds you out slightly. But then again, the last 24 hours have been full of surprises, haven’t they?
Unconsciously licking your lips, you smile at Amy: “Anything for you, my mermaid lover.”
Amy’s grin grows even wider. “Gods you’re so hot as a mermaid,” she says as she places her body directly on top of you, her breasts coming to rest on upon yourself two large mounds, your tails touching at every point. She positions her penis, already slick from the water of the shower, right above your vagina and effortlessly slides it in.
At first you’re a bit apprehensive about the experience. How can something so large fit into something so small? For at eight to nine inches, Amy’s penis easily puts most guys’ dicks to shame, including yours when you still had one. But as Amy becomes more familiar with her male appendage—no, male is no longer an appropriate adjective for the penis in general, for Amy’s very female form proves that manhood is no prerequisite to possessing such an organ—she begins to build up a rhythm, putting any thought of discomfort out of your mind.
How to describe such a sensation? The cavity in your mermaid tail feels utterly full, with no room for even a drop of water to make its way in. You belong utterly to Amy and her wonderful new penis. Every nerve in her vagina feels as though it’s been set alight, sending pleasure coursing throughout your body. As a male, pleasure came in sharp spurts, as if you were on a raft in the rapids headed for the climactic waterfall. But as a female, a mermaid, you feel like you are floating over an ocean of pleasure, with waves pulling you gently back and forth and Amy moves in and out, in and out, in and out. The sensation is so complete it makes you want to softly weep with emotion. As you glance up at Amy, her head thrown back, her long, luscious hair spilling onto the shower floor, her face contorted into a shape of pure ecstasy, you can’t imagine she’s enjoying this Amy less than you are.
As Amy rides the crest of a wave, her curvaceous body rising ever so slightly, your eye catches the dark areola of her left breast hanging just over you like a low-hanging fruit. Without thinking, your mouth instinctively latches onto it and begins to suck, like a newborn seeking her mother’s breast. Amy lets out a loud moan as she continues to grind into you, the added sensation of nipple stimulation pushing her further into the realm of pleasure.
“Shhh!” you giggle, releasing her breast from your mouth. “We’re in a public place, remember?”
Amy pouts. “Then let all the other girls come and join us. Now, doesn’t your mouth have better things to do than talk?”
“Say plea—“
“If you want to keep me to yourself, your mouth better be on my breast very soon.”
“Yes, my mermaid queen,” you giggle, Amy’s authority turning you on. You continue to suck on her nipple as the water from the shower continues to fall all over your naked wet bodies. You would think about the look on the school accountant’s face when she sees next month’s water bill, but your mind is totally lost in the love you and Amy are making, the sensation radiating from your vagina to every portion of your being as Amy explores more and more of your cavern. You close your eyes, enraptured in the moment, so you’re surprised when you feel tender hands begin to grope your bulbous breasts. You’re about to let go of Amy’s breast to let off a sigh of pleasure, but you’re quickly stopped by Amy leaning over and peppering your face with kisses. Instead you moan into Amy’s plump cushions, realizing how good she must be feeling as her hands rubs against your equally sensitive towers of flesh.
From then on, you lose track of time as you sink completely into Amy’s world. It might be minutes, it might be years, but eventually you realize from your past female orgasms that you’re about to come very soon. Kind and sensitive girlfriend you are, you don’t want to climax before Amy has her first real experience cumming with a penis. Fortunately for both of you, you can tell from the throbbing deep in your vagina that Amy’s about to go over the edge as well.
You lock eyes with Amy. Her breaths become shorter and raspier as she thrusts at full speed into you. You meet each of her thrusts with a thrust upward of your hips as well, moving in perfect rhythm as you desperately try to get her further into you.
Amy cums first as her penis explodes, semen rushing into you. At first you worry a little—can Amy become a father? Should I be on the pill?—but every such thought is swept away as you also climax, juices gushing from within you and spilling all over your and Amy’s bodies. Your and Amy’s tails instinctively intertwine with each other. The feeling of Amy buried in you, the flow of her seed within you, the sensation of her breast now leaking a milky liquid into your mouth, the presence of her hands all over your breasts and her mouth still on your skin, the water dripping all over you, the scent of Amy around you—all this you are aware of as you float over the boundless ocean of pleasure and release your juices.
Finally, once you’re able to think clearly, Amy sits up, her tail in front of her. “Has sex always felt like this for you as a guy/girl?” you both blurt out simultaneously.
You laugh: “I think as mermaids the level of pleasure we feel is far beyond anything we could feel as humans.”
Amy rests her head across your smooth breasts. “Especially with a beautiful girlfriend like you,” she murmurs.