How long does it take to get horny?

Sounds to me like you're in an ideal place.

If one is to be a prisoner of the cage and desperate for release, but unable, it's the convict who yearns for sky and sees only bars.

The prisoner who is at peace with prison can have a life behind bars, whereas the one who can think of nothing but escape, burns up in his own cell.

If chastity is about driving up the urge and making sex more exciting, then perhaps it's not working for you. If chastity is about denying release, then it sounds like you're doing exceptionally well.

 

Being locked and knowing she has the key. I'd say just her touch makes me horny. After orgasm, soon as the cage goes back on, I'm horny.

 

If my wife isn't in the mood, there's no point being horny. When wife wants to play, it becomes exciting and constantly arousing no matter if I'm kept locked or not.
How my wife feels, makes all the difference. Isn't that the point though, we want to make our KH happy to feel happy, horny, frustrated and elated?
Otherwise it's just frustration.