With you under the control of the trance from the song Alexis sung to you, she pulled down your red swim-shorts, leaving you completely naked. "Now sit down for me, Chris," Alexis explains. You do what she says, and place your legs in the water, while sitting down near the edge of the pool Alexis was in.
Laura was suspicious of this happening, but she remembered something from the wall writing she saw. In order for someone to become a merman, or mermaid, a member of the royal sea family had to do an act of sex with their subject, which would summon all the merfolk in the kingdom, and the trident will be offered to the one who sucked their penis, or pussy, and use it to transform the human into one of them. It all made sense according to the wall writing Laura saw, while following you.