I want to talk about all sorts of things and I can't come up with coherent phrasing.
Have a lewd adjacent joke, inspired by the "your sick little fetish!" clip on a porny tumblr of uh.... blowjobs? I mean admittedly the lights were on.
for a valid YOUR SICK LITTLE FETISH you need to include both uppercase and lowercase letters, animal noises, at least one element of costume, and it can't be something obvious like your birthday. "Fetish" is right out.
additionally just because the phrase "sick little fetish" has the same scansion as "my little pony," this does NOT imply ponyplay by default.