I think you're right there AKUK. We are 'bound' (pun not intended) to pick up kinks and fetishes from those we encounter.I think mine have all been introduced to me by partners and I’ve then held onto them - I must be some kind of fetish sponge
I now have a total passion filled fetish for pleasing my wife orally. Now, I've eaten too many to mention and was never like this. I can't get enough of her taste and reactions.
My other fetish is ball stretching and that seed was planted years and years ago while working summer employment between years in Uni. at a steel mill. In the change room one day an a guy walk out of the shower with the biggest low hanging balls. I thought it was totally manly.
Fast forward years later and down a rabbit hole one day and I found a group that modifies there ball sacs over years of wearing weights and manually stretching.
Two years later I have a decent hang and continuing. Sorry for yhe long winded reply