Shego

Kim wanted Shego.

Not only because she thought the villain was the hottest woman she'd ever seen, and not just because all of the older woman's teasing was maddening, but also because Shego was the strongest person Kim knew, after herself of course, and the thought of keeping such a strong woman locked up as her personal toy made her happy in all the dark ways she could never let Ron find out about.

Luckily GJ and Wade had made it ridiculously easy to do.

GJ was tired of Shego breaking out of every prison they had, and Wade welcomed the challenge of whatever Kim laid out, plus was loyal to Kim to an extent then Kim found weird.

So Wade had made the needed tech to make sure Shego was unable to fight back, and GJ were going to literally ship Shego to Kim's new house.