You turn your head and look at your feet, or rather, where your feet used to be. For your legs have merged into a long, bluish-green tail ending in a meter-wide tailfin. You've become a merman! You touch the scales and you feel a shiver where your thighs used to be. You run your hand up your tail, wrapped in the pleasures of your own body, until your reach your crotch. Instead of your male equipment you feel a small slit.
"Oh my God," You say then stop. Your voice is now femine, soft, and seductive. "I'm a merMAID?!?"
Further inspection proves this true as you find your breasts, which are now a D cup. As you rub your nipples, feelings you've never experienced before coarse throughout your new body.
As your inspection continues you feel your new face. It is much smoother and more feminine. Not a trace of facial hair is felt, but as you see your hair, it is now long (almost to your waist) , blonde, and containing a hint of green to match your tail.
Finished your inspection, you continue to feel yourself until you faint from pleasure. Waking up, you decide that being a mermaid isn't bad, but...