Your feet and legs continue to re-mold themselves, flowing together like a zipper from your waste down. Your dick takes on a blueish-green hue and scales begin to form all along your new billowing tail.
Water rushes into your lungs, but they have been transformed into gills and you begin breathing easily. Your fully formed tail is now over six feet long, and webbing has formed between your fingers. Your has grown out long and it matches your new scale formations.. You are now a fully functional merman!
All this time the mermaid has been smiling as she watches your progress. You find that you can move through the water with little effort and glide over to her. She wraps her arms around you and says, "come my love. know me." you embrace her. Her breasts are pressing against you, warm to the touch, nipples on fire. You lock tongues in a passionate kiss as you feel her tail wrapping itself around your own. Your manhood still begs for attention and as the two of you join tightly together it finds its place.
You fuck the hell out of her!
As you are within the throws of passion you hear a noise. What was that?