(click to enlarge)
Jack is the Mass Effect crew member with possibly the most twisted history out of any of them. We all know she was the subject of lab experiments for years, but do we really know WHO was doing them on her in her early years? Now we do.
This Portal themed concept is by axl99 and speculates that Aperture Science got their hands on Jack before we met her. She must have had an easier time taking down GLaDOS with all her biotics.
And yes before you say it, the “picture error” is that she’s running away from GLaDOS while simultaneously skewering potato GLaDOS on her Portal gun.