"You'll taste better if you're still alive." You say sadistically.

You start to untie the mermaids hands, ignoring her screams and cries. You lick her miniature human breasts to try out her flavor first. "Hmm, not bad." You say to her, causing her to panic and flop about.

You put her human half in your mouth and suck on it, like a fishy lolipop. Your tongue glides around over her face, her breasts, her stomach, slicking her up with your saliva. When you finally get done and take her out, she looks absolutely miserable, with sad, puppy dog eyes staring back at you, she silently sobs at her coming doom.

"She looks so sad," you think. "I mean, it was only a few fish, there are plenty more out there, right?"

Maybe you should let her go, there were plenty of fish out there...But then again, a mermaid in the hand is worth two fish in the ocean...