I've felt that need to share the fetish side of myself with other people when it's been such a large part of my life and brought be joyous moments, just to realise that it only gives people the scope to ruin a sweet thing for you. Think about what it is you're looking for in telling these people and if it's worth the risk of them trying to I still sexual shame into something you enjoy (or not even trying, their potentially negative reactions may do it in itself). If you're sure your friends are open minded, won't bring it up as a talking pointer, will keep your business to themselves and have your best intentions then why not. Otherwise why give others the power to snigger at something precious and wonderful