This story was inspired by Pom-Poms and Tight Thongs (Megapone), which has since been deleted. It is no longer Gay Porn, but just porn (I think).

The sexually active characters are 18.

R63. Has M/F transformation, bondage, enforced feminization fellatio, M/F sex, dubcon

The cover is about as close as I could find to what I wanted. No wings, but otherwise fairly accurate.