Geralt says he won't bite him with the full fangs and Jaskier sighs - he isn't surprised, really. The witcher is always worried about hurting him with his mutations, as if he would ever. Jaskier considers using some kind of argument about how he could be hurt by Geralt's strength too and he's touched by those amazing hands anyway, but then Geralt adds more and-- well.

"...they what now?"

A striga. As far as Jaskier knows, Geralt has only fought one of them. There's a chance he could've forgotten to mention the other one, but strigas are fucking dangerous, aren't they? More than the average monster. There's no way Geralt could've escaped a striga hunt without a scar, and Jaskier has already gotten all the stories behind every scar - well, except The One (TM) but he's pretty sure that one belongs to Blaviken.

So this leaves him with only one explanation.

"YOU STINGY BASTARD! YOU BIT A BLOODY STRIGA AND YOU LEFT THAT PART OUT OF THE STORY?" he exclaims as he repeatedly pokes Geralt's chest, dramatics making a full appearance. Look, indignation at least means he isn't sad anymore, right? Anger is still around but it's huffier and less true fury, that's gotta count for something. "Unbelievable! I should start washing your mouth with as much soap as I use for your hair!"

Huff, huff. Dumb witcher and his dumb habit of hiding details from the storyteller himself. Jaskier takes a moment to regain his breath, eyeing Geralt's mouth as he does so. Mmmh.

"...I like the fangs even more now." So if a tiny little bit of lust sneks into his scent, well. Coincidence. Totally.