(M4A) A why man reeuced to a sissy diaper baby

I never did this, but i would like to do a roleplay where i am a shy man who Is not used to have relationships and who Is slowly forced into a sissy diapered baby by someone who knows his true nature or how to take advantage of It.

Sissification, abdl and humiliations are the main themes but we could find a way to introduce others things or adapt the scenario.