Amanda smiles as she rubs your cock onto the scales of her tail making you moan using her own webbed hands. you do grow even more erect for release to be inside of her fish cunt. she knows that you are hers forever that all of the fight is gone in you. that you really do want to join her in the sea. you feel her put your cock into her cunt as she grabs your ass to slid you in deep. all of your will is gone. the more that you try to fight off a mermaids charms the more that you want to join her in the sea. as you start to fuck her you feel your 2 ears start to rise up into points. you hair grows long, green like seaweed as you start the change into a merman. you know that she has won. that the 2 of you really do belong together here in the sea. the 2 of you hump as you fuck her deeper as all of the changes are happening even faster to your once full human body. into a half man half fish body like your new wife in the sea. as you fuck her you run you own now webbed fingers all over her tail. you love the feel of your webbed fingers as you start caressing the scales on her ass tail as you fuck her deep with your cum filing her warm cunt. you feel your 2 legs merging into your own fish tail. the change is complete you are now a full merman. as she smiles at you her merman in the sea forever. the 2 of you separate, you see your strong muscles, abs. you flick your own fish tail in the water. you for get that you once had 2 full human legs below the waist not a fish tail. Amanda smiles as the 2 of you use you tails in the sea to swim together. you see all of your muscles are a lot bigger like your abs. you see your hands are now webbed like hers, you lead her to a rock, lay her over it as you lay on top, slide back in deep so that you can fill her with your fish seed impregnating her with your fish seed so that all of your children will be mer-boy, mermaids in the sea. no 2 legged children ever in your new family. so that all of your children with be mers in the sea just like their parents are. you know that this is your true home. here in the sea with your wife a real live mermaid. that you will both raise all of your children in the ways of the mer people in the sea.