A half-amused little hum is a huge reaction coming from Geralt and music for Jaskier's ears. It always is, but on this particular occasion, it matters even more: he can't look at the witcher and read his body language to know what he's really thinking. That little hum? Tells him Geralt is in a good mood, that he's enjoying this moment they're having, that he isn't pushing through it for the sake of a birthday gift.

This conclusion is supported by the joke that comes next, Geralt's good old dry humor that he adores so much - when it isn't used being against him anyway. Jaskier laughs, loud and brightly, because it's funny, but also because he simply feels relaxed and content.

This is, without a doubt, the best birthday he's ever had.

He has a comeback for that little quip, but then Geralt asks him to dunk and Jaskier only gasps in both surprise and excitement before doing as asked. So it isn't only a massage, it's the full spa treatment - Geralt truly is spoiling him. Which is funny as hell, considering how much the witcher likes to make fun of him for being a spoiled brat.

When he comes back up, he doesn't hesitate to throw his head back to look at Geralt with adoration in his eyes and a grin splitting his face. If he had a tail, he'd be wagging it right now.

"Do you-- ah." He interrupts himself when Geralt's fingers are buried in his hair, because that feels so fucking good. The witcher has always been meticulous about his goals, and this seems to be no exception. Being at the center of Geralt's intense attention is like being looked at by the fucking sun, and Jaskier will happily burn with it.

After making some more noises to show how much he's enjoying this, he tries again. "Do you understand now why I enjoy pampering you so much?"