Genuine question, I myself have been seeking the answer for a while, but still can't tell for sure. I do get that many people view their femenine appearance as "submissive", but some (myself included) have a thing for dominant femboys. Definitely not some reverse size difference, for me at least. I'm pretty small myself, but don't have a thing for big bulky dommy guys...

Could be a lot of things, you enjoy males but prefer a feminine look, the cuteness of the lads could be what draws you in, butts, many things.

They can dress to be comfy and sexy at the same time (thigh highs + skirt is a killer combo).

you probably just like penis and femininity; maybe the strangeness of 'girl is actually a GUY that looks like a GIRL' is what does it for you i dunno

That's what it is for me. A nice cute cock and balls on a girl, fuck me I'm hard just thinking about it

Same... Thinking of it makes me weak in my knees...

As an average-looking femboy here, this post actually turns me on sooo much~

The hottest thing for me is maybe the fact that I tend to look good on a lot of girl clothing, which looks like a lot of people tend to enjoy~

something something, the feminine qualities are what make them attractive (etc, counter to the "im not gay," claim)

Honestly?I think alot of it is having feminine traits.

This

I think it's just the feminine aspect of it. Recently I've been down to fuck any nice, plump, smooth asses but femboys just got it for me. Shiii they made me bi in the first place lol

That feminine slender physic, when they wear cutish clothing and stockings,

Perhaps there's a bit of a "forbidden fruit" thing for some people, lots of things they like about girls are present but they're still getting turned on by a guy

Agreed I also think it's the taboo aspect of it. Straight dudes know that want women but once they see femboys with that type of build they tend to wanna go after them too

Mhm, seducing straight guys is pretty fun because of it >:3
I don't do it anymore because I have a gf now, but getting comments or looks from "otherwise straight" men is rather empowering and fun.