Forced feminisation
From wipipedia.org

Forced feminisation is the process of forcing a man to be like a woman, generally as a means of humiliation.
This can take various forms:
- Force him to wear female clothes (cross-dressing), possibly in a way that makes him look ridiculous.
- Include a wig and make-up in an attempt to make him a passable female.
- Make him behave in an effeminate manner.
- Force him into a submissive role characteristic of stereotype females, for example that of a maid.
- Make him take part in sexual acts in a role more typical of females.
- Force him to have gender reassignment therapy, medical or even surgical.