Probably enslaved, Vriska would say, well, at least as long as they didn't wind up in the hands of particularly unhinged or sadistic troll. Unfortunately, there were quite a few of those, but they tended to not keep slaves; they were about violent subjugation of those lower on the totem pole within their own species and not much else. Anybody they kept would purely be for very-not-sexual purposes - just to tear apart for a good laugh.

How lucky that the troll girl was not in this just for cheap, kill-and-dispose-of entertainment; no, she desired Umi's body for the exact things she was doing now, though with those decidedly not sexual tools (or at least mixed with some that were) across the room, that could easily change. But the mood wasn't changing, the human girl still very receptive.

Umi then utters the first few words in a while, the way that lovely voice was strained with pleasured agony. Vriska seems to consider her pet's words, juice-slicked fingers sliding out of her pussy, her other hand gently squeezing her breast before trailing down her belly, and winding up tracing over her crotch. A kiss is planted on the side of the bluenette's neck, and things seem to calm down.

However, that changes quickly as she wedges her dry fingers together and puts them in her wet fingers' place inside of Umi, quickly going just as hard as before. That kiss turns into another blood-letting bite, just barely missing anything vital. Her slick hand shoots up just before that, clasping over her mouth, Vriska trying to push two fingers inside of it as well.