Chastity and orgasm denial discussion

Hello everyone! As the title suggests, this is an unusual topic with a few questions I have. Lately, I’ve become interested in chastity and purchased a CB6000. I trained myself to wear it by starting with short periods, then moving up to a week. Finally deciding I’m used to the device, I gave my key to my girlfriend. She has no experience with non-vanilla relationships but embraced and loved the idea of me being in chastity for her. Here is the issue. The longest time I’ve stayed locked was just one week because my girlfriend logically wants to play. However, I want to be kept locked up longer and have her deny me orgasms for extended periods. We have discussed this countless times; she knows what I envision: I want her total control over my member, using it only for her pleasure and allowing ejaculation only when earned and if it pleases her. I’ve emphasized that her comfort is paramount and asked her to be stricter about releasing or giving me relief. Yet, seeing as she lacks experience beyond vanilla dynamics, it’s hard for her to act more dominant since she is used to being passive. We discuss all topics to encourage her dominant side. I occasionally call her Mistress now, ask permission before ejaculating, and even drafted a chastity contract that I sent to her for review. Since she loves the concept of me wearing the cage while being teased and denied as I bring her pleasure, why doesn’t she act more dominantly? I’d appreciate suggestions from other dominant ladies and keyholders on how I can ‘release the beast within her’, or advice from other men in chastity regarding what actions provoke your keyholders/Mistresses to be more dominant. Thank you!