Sorry this is very short, also I don't think it's really good but here goes nothing.
Liz and Kid are sitting uncomfortably on the couch, their hands and lips tangling into each other's hair and mouths asymmetrical. They both want to move more comfortably and, for Kid's sake, more symmetrically, but it's as if their bodies just won't move.
"This… is so… totally… really…asymmetrical… but I can't… find it…in…me… to stop…" Kid says between breaths.
Liz smirks "You… don't have to… Kid…" Liz answers him also between breaths as they are kissing uncontrollably.
Kid somehow was able to force Liz in a laying situation, with him on top; he had more control right now and now a little bit more symmetrical. Though Symmetry is only third place in the young Shinigami's head. First, it is the reaction Liz is having on him, second, just how sweet she tastes and the smell of raw gunpowder is driving him insane, obviously third, is that Liz is grabbing him by his neck and hair asymmetrical and he didn't care about it right now. He just wants her, right now, right here, forever.