Another thing about Yurena's horns decorations/jewelry, since it's all from Gortash. For a long time she just had the two rings, then eventually a chain around one of them too. But in the current day she also has little studs in her horns, which are also from Gortash, naturally. It took a long time for Gortash to even suggest such a thing, and even longer for Yurena to agree to it, because I imagine tiefling horns are like goat horns and therefore have nerves and shit (read; putting something like those studs in would hurt). And like Yurena has no problems with pain, both having a high pain tolerance and generally not finding pain as a bad feeling, but to trust someone to potentially hurt her like that? It took a while, not to mention Gortash insisted on spending plenty of time so close to make sure each stud was perfectly placed, perfectly symmetrical
Gortash: I'm not hurting you, am I?
Yurena: You'd be bleeding by now if I cared
Gortash: I didn't ask if you care, just if it hurts
Yurena: I'm not the first tiefling you've met
Gortash: You're the first one whose horns I've touched. It's never come up before
Yurena: If you must know, fine. Yes, there's pain each time the jewelry is put in. Be careful closer to the base of them if you care about it so much
Gortash was in fact extremely careful. At the end of it all, Yurena has more horn decorations to treasure and Gortash is left admiring his art - and Yurena