"Very well, my little toy, you're looking good! But I think I can do better..." she tells you, with another devilish grin on her face. She makes a weird movement with her hands, and you feel yourself changing again. You can feel your hair growing even longer, falling on the rock, your breasts growing a bit bigger, your tail growing longer and twisting itself just a bit more around the rock, and your face taking on an even more attractive form. You try to scream, but all you can do is continue spitting water.
"Now you look perfect..." she says. "Now, toy, I hope you enjoy to spend an eternity as a fountain, because we mermaids are inmortal and I will make sure you will never, ever break away from your prision, and that you never move even the slightest picometer on your own..." she says, with the same wicked grin.
Nobody would be able to tell you're trying your best to scream out of your lungs, but no sound comes out of your frozen mouth, just more water. You're a fountain... forever, an inmobile mermaid, with the only purpose of entertaining your owner...
"I'm going to have some fun. You'll probably like it, but I don't think you have enough will to be considered a person... you're a thing, a belonging, MY belonging..." she whispers on your ear, trying to scare you even further.
She begins to worship your body. She runs her delicate, yet wicked hands over your pale skin... your neck, your shoulders, your torso... your long, scaly tail... She plays with your falling hair, twirling it, and making it fall on your breasts. It tickles, it tickles so much, but all you can do is lean on the rock, and stare...
"You know... this body of yours is making me horny... i'm gonna play a bit more with you..." she whispers on your other ear. She then puts herself on the rock, staring right at you. She opens her mouth, and drinks some of your water. She runs her tongue over her lips, just as if she liked the flavor, and then over your lips, just before giving you a deep mouth kiss.
You don't understand how she can kiss you while swallowing every droplet of water, but you just give in and enjoy the moment. Her lips are so soft, and her body is so beautiful... and it feels amazing, being kissed by a mermaid... She continues kissing you for some long, long minutes, until she finally continues her play. She moves a little closer to you, and begins pressing her breasts against you, soaking herself with your liquid, and gropes them... She continues kissing you, groping you, loving you... and moments after, you're both completely soaked in your water. You're hornier than ever, and you can tell she is too. And then, she moves her mouth down there...
Minutes later, you get an orgasm. And another. And another. You loose count at the fourth. You want to shout, scream in pleasure, but all what happens is more water coming out from your shut mouth. Hours later, she's grown tired of all that sex, and she tells you...
"You're an amazing toy. My very own fountain of pleasure..." she says. "This is your existance now: your only purpose is to give me amusement, and pleasure. Some days I may blow the hell out of your pussy, some days I may kiss you for hours... and some others I may not acknowledge you at all, some others i'll leave you so horny you'll want to beg me to have sex with you, but I won't listen to you... for you have no will."
Days pass, and it's exactly like she described. One day, she used your breasts as pillows and slept all day. Another, she spent hours worshipping your breasts. Another, she cast a spell on you which almost drove you crazy from the horniness, with no means of release... And it doesn't looks like she's going to run out of ideas anytime soon...