they are in fact marked and labeled as Dallis' panties.
obviously, if it were me, i would put them on a pole and wave them at her as a truce flag...
Dallis would be so furious she'd literally be breathing fire if that were the case.
A cool way of doing it would be to leave the panties nameless, but have them initiate dialogue from the companions saying something like "those are NOT male panties, wtf Orivand"
I'd have loved to have the option of confronting Orivand about the panties though, if you stole them first.
There are no male panties. There's male speedos though.
Eh, I was wondering how much time it took for someone to finally open a 3d about Orivand's...peculiar tastes
Always thought Larian didn't believe he was detestable enough, so they added Dallis' dirty underwear to make him look like a perverted sicko so as to erase every remote possibility of you feeling bad about killing him.
It's funny, because he had a really cool voice and accent on the intro. I think this was more a reference to the nymphomaniac shop keeper on the first game, but with a more thievery twist.