Assistance with getting started in chastity play

My wife isn’t really into it, but I like the idea of being controlled. It’s not about becoming a cuck in a traditional sense; rather, it’s fantasy play between my husband and me. A few weeks back, she helped me reach ten orgasms without ejaculating, which felt incredibly intense! However, she hasn’t yet decided to take charge of the key because she doesn’t care for how the devices look.

I’d appreciate any advice on easing her into it slowly… Also, are there options for others who want to hold the key remotely? Lia