The bad sases had kidnapped you from your universe a while ago, to keep you as a captive, but ended up getting attached to you instead. Especially Killer. Gosh, he got all mushy when you were around, somehow. But, you don't know that of course.

You were lying on the couch in the living room o the castle when Killer suddenly comes in and flops on your lap, not caring about your personal space. He lies on his stomach on your lap, watching the tv as if he wasn't.