Tell my wife or ni?

I’m into something that my wife isn’t, re: female undergarments. We’ve been together for 7 years and I’ve hinted at it, but I know for a fact that it’s not her thing. Should I bring it up explicitly or just continue to satisfy in other ways (never anything sneaky/weird/that would break her trust)?

Updates
7 mo
Correcting title to no*, sorry about that.
Updates
7 mo
First of all the title, apologies on the typo. Or no*.

Secondly, this is more about a woman wearing them first and then me doing other things with them, not me wearing them out in public (or in private for that matter). That’s not the engaging part for me. Thanks to all for the input!
Tell my wife or ni?
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