I have this persona of a very feminine male as a seductive poison ivy style villainess with a trademark costume/look of palish skin, long stringy dark brown hair, a black choker necklace, black pleather thigh high stockings and arm sleeves, and tight thong like latex bikini bottoms in silver, black, gold, or blue.
The next part of the fantasy is me as this character in the midst of fulfilling some kind of evil agenda and feeling empowered and sexy in my skimpy outfit, thinking I've successfully used my sexuality to get my evil way. only to be confronted and thwarted by a good fem guy or a Dom guy who is smaller than me. My confidence quickly turning to cowardess and I am quickly and easily defeated and knocked unconscious by the hero and left laying.
Or the same concepts, but as a pro wrestling match, where I'm easily dominated and maybe sometimes toyed with, but having no offense and being easily pinned.