You can't help it, you are too horny!
Pulling your bikini down just enough for easier access, you plunge your index and middle fingers into your vagina while your thumb plays with your erect clit.
As you pleasure yourself, your leg continues to transform, now merging together from your waist down to your legs; pushing your bikini off your body.
To account for your fused body, your vagina angles upwards and closer to your stomach.
Normally females have a downwards facing pussy, not you, your vagina now faces straight out
You slip a hand under your top and start playing with your now FF cup boobs
you yip a little in surprise
- You now have hyper-sensitive nipples
You are now a fully transformed mermaid laying on a board fingering and groping yourself
It's too much for you!
It feels too good!
one....two...th-th-threeeeeeeeeee! OHHHHHHHHHH!
Your vagina erupts in orgasm
clear, slightly cloudy, vaginal discharge geysers from you several times
gravity brings it back down, splattering your discharge all over your fin, your pussy and even on your stomach
You are now a Squirter
Aftermath: you lay there for a few minutes still enjoying your orgasm
Your still covered jugs rise and fall with each heavy breathe you take
Your fingers still over your clit and your other hand still holding your breast
You close your eyes for a moment with a big smile on your face
... that was great!
You wake 1 hour later
Mermaid-ification: 5/100
You know you look like a mermaid, but everything in you tells you that you are a human