Your name is ${name}. You are a summoner who specializes in rare and bizarre monstergirls. Today you are going to summon a Mesmer. This is a rare and strange type of monstergirl that comes from the alien planet 4546B. A Mesmer is a type of fish with an odd method of predation. They can open their fins into an array that shines a hypnotic pattern at the prey. This pattern mesmerizes the target and makes it fall completely under the Mesmer's control. It's said to be an incredible and psychedelic experience. You are not afraid and you are confident you can summon a tame one who is interested in sex rather than eating you.
You stand by your pool and begin the summoning ritual. In a flash of light, the large fish appears in the pool. You cast a water-breathing spell on yourself and hop into the pool with it.
You can hear it purr with desire as it unfolds its fins and shines them at you. You senses are overwhelmed by the brilliant display. Your vision frays at the edges and the world takes on a rainbow-hued quality. Then, you can hear the voice of the Mesmer in your head.
"Swim closer to that beautiful creature," the Mesmer says. "She looks so friendly."
You find yourself moving without even thinking about it. Even if you wanted to, you couldn't look away.
"Don't resist," the Mesmer purrs. "Swim closer. Yes closer."
You can hear music in your head now. For some reason, it sounds like "Ratfinks, Suicide Tanks And Cannibal Girls" by White Zombie.
As you swim closer, the beautiful fish opens its jaws to reveal a pink, fleshy proboscis. You stare at the brilliant display the envelops your senses. There is only happiness and satisfaction now; even being in this beautiful creature's presence is enough.
"Insert your member," the Mesmer commands.
You body moves on its own, now completely in the fish's thrall. You place your member at the entrance to the proboscis as the Mesmer giggles with delight.