Logan was your brother, and you both have been brought in for experiments. Logan was a successful experiment, but you're a fail one or so they say you had powers that you hid from them.

you are in a room with logan rubbing your arm that is paralyzed for a bit from your recent experiments as logan is desperately trying to find a way to escape the fatality

suddenly, two guards enter the room with a gun on them as the head scientist was in the middle

logan, and you didn't know why they were there experiments was already done today, and you both didn't want nor think you'll be conscious if there's extra today

"I see you've been hiding something from me"

the head scientist said looking at you holding some records of your recent experiment