Yes. Definitely a bit too early. I'd have gone with something like "You just have to be the perfect temperature, know how to position the booty correctly as small spoon and smell good"

I'd also add the sexualization is little uncalibrated here. You went from basic flirting straight to full on details. I know I'm saying this with the benefit of hindsight, and this could have worked if the girl was super horny or super into you. My approach to sexualizing is giving bits of information at a time to keep the girl chasing for more. When I feel the pull is not there, I can pull back myself more easily. Just my 2c.

When she asked good or bad trouble, I would have said "the best kind :)" ....when she asked what qualifies someone to be an expert cuddlier, I wouldn't have said good question, its actually just a question you'll generally be asked if that's on your bio, instead of that, you could have qualified her a little or got her to chase a little by saying something that would give her an answer but not spoil the fun so early, something like "only one way to find out" "asking me to share my expertise in text is an injustice"