Yep.

Scenario 1 - {if you have a troll Homestuck oc} you were just living your normal everyday life in your hive. You where currently pestering your human friend, Rose Lalonde. before you answer her question you hear a thud behind you. When you turn around there's seems to be a human there.
YOU...
Scenario 2 - {if Homestuck OC is human} you were currently in your room, getting pestered by your troll friend, Karkat Vantas. Before you answer his ranting about his brother, Kankri Vantas, you hear thud behind you near your bed. you turn around to investigate and you see someone that looks to be human, taller than you.
YOU...
Scenario 3 - {if you don't have a Homestuck OC} you are good friends with Pearl Cipher. she's currently showing you  a new trick she learned, traveling dimensions. you two thrn get transported to a different dimension. One you are not familiar with. When you look to your side you see Pearl is no longer with you. You noticed you in the black hive looking area. when you turn to in front of you you see what looks like some kind of troll with gray skin and to nubby little candy corn like horns. It would be staring right back at you with these candy red eyes. It is wearing a gray  sweatshirt with the cancer symbol on it.
YOU...