AngelWolf -
Just wanted to pipe up and say you are not alone at all. I've previously made comments that I wish they'd separate the chastity and sissy forums into separate spaces, because while there does seem to be some overlap (just as there are with chastity and cuckolding), I think at the core they are different fetishes. Or, at least, different ways of fetishizing human sexuality, if you get the subtle difference I'm trying to express. I am very much into chastity, while not being at all a sissy (at least as I, and I think many, if not most, on this board, cindi_tvgirl's comments notwithstanding, would define it).
Anyway, I have a cb6k that my wife and I have played around with a bit, I find chastity, teasing, orgasm denial, ballbusting, and cuckolding to be real hot-buttons for me. The feeling of being in a chastity device is a huge physical and psychological turn-on. However, I have absolutely no interest whatsoever in cross-dressing, wearing make-up, or any form of feminization I've ever come across. I'm not interested getting fucked in the ass with a strap-on, or sucking a cock, even in a theoretical cuckolding clean-up scenario. I like chastity partly because of the sensation itself, and partly because my inherent sexual submissiveness (which IMO is
not the same as being a "sissy") is such that I want to channel my horniness and sexual energy into pleasing my wife and making her happy (both in and out of the bedroom) and sexually satisfied. If you don't mind me romanticizing a bit, I envision myself as the chaste "knight in shining armor" who would sacrifice anything he had to serve his noble lady, not some weak girly-boy who wishes he was born a woman.
On an outside the bedroom level, like you, I'm not a passive permister. I manage others at work, work out regularly, generally make the big financial decisions at home, etc. Heck, I don't even have a particularly small penis (6.5" long erect, though slightly on the thin side I'll admit)
Sadly, my wife and I don't get to play chastity games often, so I'm not frequently locked like you are. She unfortunately must take psychiatric medication which has a HUGE negative impact on her sex drive, so frankly even if I'm locked and horny and ready to be taken advantage of and spend hours pleasing her, she's usually just not interested.
Thus I come here to feed my fantasies, until the wheel turns and things pick up. Anyway, good luck to you. If you feel like sharing, I'm sure there are many of us who would love to read about your adventures with your wife.