Circe, easily distinguishable among all the naked maidens because she's the only one clothed, in one of those long slit-skirt and drapery numbers particularly common in pre-Raphaelite paintings, lounges back on her divan and looks at you.
You're clothed as well, but fairly scantily, in the blousy harem pants and veil you'd found in the closet along with a spangled sequined shawl and halter top. Thankfully, you don't have much body hair, so the midriff-baring number doesn't completely give away the gig.
Circe looks at you with casual regard. "So...a belly dancer, is it?"
"Yes," you say as high and girlish as you can manage.
"Your name, child?"
You come up with the best belly-dancer name you can on short notice: "Fatima."
"Fatima," she repeats, then eyes your chest, or lack of it. "Flatima? Well, dance for us then, Fatima. You're rather flat, but then flat girls often make good dancers."
She nods to a group of maidens who produce lyres, drums, and various other musical instruments from a chest, then begin to play belly dancing music. Unfortunately, your only experience with belly dancing is having once gone to a Moroccan restaurant, but you can still try.
You begin to dance, twirling about, wiggling your belly, and playing with the finger cymbals that came with your costume. The women watch, vaguely interested, then some begin to smile.
Circe remarks, "I believe in reward and punishment. The more beautifully you dance, the more beautiful a woman you will become. The less beautifully...well, let us see you dance."
You begin to dance frantically, waving your arms, swaying your hips, and doing your best to be a sexy girl while at the same time kind of horrified to realize that your reward for dancing well will be to become a sexy girl.
The maidens begin to giggle as you dance, but you can't quite figure out why until you pass your arm in front of your face and you see it's now rather hairy. You were never a hairy guy to begin with, but it's extremely hairy and getting hairier by the moment. You look down at your midriff and see that it's hairy too. Hairier than any human should rightfully be. And your feet are huge and strange, with the big toe moving back, but still you dance, waving your arms as you realize that your arms are also getting far longer and finally the music stops and the veil slips down.
You cover your face with one hand, thinking that they can now see your male features, but it feels strange, and then you touch yourself between your legs with your other paw and you let out a bestial cry of horror as you realize that Circe has not only turned you into a gorilla, she's turned you into a FEMALE gorilla!
Circe smiles. "Your dancing does not please me, Fatima. However, I believe with the proper inspiration, you might dance better. Perhaps some dance partners. Ladies, take her away!"
Another group of naked women produce spears and swords from behind benches and pillars, herding you off as you attempt to protest but all that come from your mouth is bestial grunts and screams. Then you pass through an archway and a set of bars come down.
"Hey, looks like we've got another one," says a voice behind you and you turn and see three silverback gorillas.
The smallest silverback's face lights up. "Yeah, but she's sent us a chick!"
You realize, with awful horror, that not only are you still wearing your harem dancer costume, but you're a female gorilla wearing a harem dancer costume in a cage with three sex-starved males!
You run and shriek, doing your best to avoid them as they chase you around the cage. This is what Circe meant by "inspiration"!