User blog comment:SouthParkClydeFan/Analysis on Lincoln's relationships with his sisters/@comment-24200891-20160919041320

I'll wait for expansion of Lynn's section.

I suspect she picked Lincoln as her sparing partner because he's the closest to her in size and weight. If she doesn't realise her playing hurt Lincoln that's really sad like in Tiny Toons Elmira's playing hurt her pets. I imagine when Lynn and Linc were toddlers they normally played with balls.