So I broached the subject (no pun intended) with sub girl today. I was quite worried she'd not like the idea and get funny about it so I tried to hedge with a "now this isn't something i expect you to do right now, it's something to move towards" but when I explained (whilst showing various pictures) she seemed interested and later said she we relieved that "that was it". Cheeky little thing got a good hiding for that 
Something about keeping a person in bondage like that 24/7, knowing that they want to touch themselves so badly but can't because I'm holding the key, knowing when I go to bed that I can masturbate any time I like, but that she's completely incapable, having to unlock her before play time, issuing periods of chastity as punishment, releases as rewards etc etc etc... bet it'll be hot
Anyone have any experience? Tips? Recommendations?
I'm thinking I'll give her a spare key, sealed somehow so that if she uses it, I will know. That way if she ever desperately needs to take it off for some reason she can do so, but better have a damn good reason like 'I needed surgery'
Something about keeping a person in bondage like that 24/7, knowing that they want to touch themselves so badly but can't because I'm holding the key, knowing when I go to bed that I can masturbate any time I like, but that she's completely incapable, having to unlock her before play time, issuing periods of chastity as punishment, releases as rewards etc etc etc... bet it'll be hot

Anyone have any experience? Tips? Recommendations?
I'm thinking I'll give her a spare key, sealed somehow so that if she uses it, I will know. That way if she ever desperately needs to take it off for some reason she can do so, but better have a damn good reason like 'I needed surgery'