Gender change spell

This spell was attempted by Willow Rosenberg to transmogrify R.J. Brooks into a woman. The reason for this was because she had fallen under a love spell with the male RJ, despite being a lesbian, and wanted to change him into a female to accommodate her sexuality and prove her "love" for him. She managed to string a few incantations before Xander Harris interrupted the spell by covering her mouth, ending the spell. The spell called upon the goddess Hecate.

Ingredients / requirements
O Hecate, I call on you./I humbly ask your will be done./Hear my request, a simple change/create a daughter from a son (the remaining the incantations - if they are any - remain unknown).
 * A bowl of crystals
 * Four candles surrounding the bowl
 * A several additional crystals surrounding the bowl
 * Recital: