So, my idea was largely inspired by this story by JR:http://tny.cz/68e7805d
tl;dr: Mongul has a device that could destroy an entire galaxy with but a thought. Supergirl has to distract Mongul long enough for Starman to disable the weapon. Finding herself not a match for Mongul physically, Supergirl uses her other "abilities" to distract Mongul...and ends up receiving the fuck of her life.
Now, I don't necessarily want to reenact this story scene for scene, but something with the same theme and tone is nice. Superpowered superheroine having to use her feminine wiles, large-cocked superpowered villain, etc.
Starring me as the Maid of Might or, you know, whoever.
Supergirl is a lovely choice, as is Powergirl, of course. I'm also open to other canon (or OC) characters.
Other themes I enjoy include corruption/mind control/moral change, prostitution, impregnation, and bestiality (helloooooo Krypto).
Pictures to get the creative juices flowing: