I'm honestly running out of ideas for these, so if anyone has any suggestions, I'd be happy to get to work on them.

...with that said, I've got an idea involving nekomatas brewing, so be prepared!

The sphinx is one that could be very interesting to write about. Riddles, questionment and all those sorts of enigmas could be quite easy to write about, especially when concerning a changing attitude due to a sexy Egyptian-themed costume.

Hmm what if you make "reverce" some guy put on bullboy costume (horns, tail and few other details) his body changes, gets fit and tall, horns and tail become one with his body, but it not make effect on his minds. Boy go out confuzed to ask for help, but his new body hypnotizing every girl he meet, turning theyre minds into needy cowgirls.

while that's admittedly a bit of a tempting idea to do, it doesn't really fit in with the lore I'm basing most of this off of.

You can make this one just for me :3
Im so awesome cute and aroable, am I?
And you can just make some side-story. We all here for fun, right? And this story is fun. So why no?

Suppose there's always the Hellhound one, going with someone whom desires to be set free, express them selves instead of everything weighing her down. Allow instincts or desires take charge of their life instead, all those unnecessary requirements or rules from society life, just shrugged aside, going wild on a whim.

Though as to how she'll be enticed or convinced to try on it's costume, thoughts about tempting release if no confidence to do as wished filling up; may very well vary depending on how you desire to go about this suggestion.

On a side note, really did enjoy your caption uploads. Especially those Kitsune or foxgirl ones.