TL;DR, got into chastity and anal/prostate play during covid. How can i tell my new gf, that is not known about this side of the 'world of kink', about this?

So since four months now I (m25) have a girlfriend (f25). Its seems serious and also seems like this could be a long relationship.The sex is great and we both are enjoying each other.

We have talked a bit about experimenting and incorporated some bed restrictions, but nothing more yet. She is very much down to expirement but has no idea of all the things that are possible. To paint the picture she is the type of person that doesn't really come up with things to try and also when asked doesn't really know what she wants. This is totally fine ofcourse, not everybody is the same.

So now my question, during covid i have gotten into self chastity and anal/prostate play, which i have always held to myself. I have some toys (e.g. prostate, beads, dildo's) and a chastity device. I would love to share this with her but because she is not that used to the world of kink.

Because i can understand that anal/prostate play with chastity could be 'much' for someone like her, what would be the best way to ease her in??

Would love to hear your experiences, be it the gf hearing it from your bf or it you telling your gf!

Thanks for reading!