Stand Down Kid

Prime Post-Predacons Rising: Arcee is one of the toughest bots anyone could spar with. She can easily kick anybody's tailpipe and have them limping to the med bay. So why does Smokescreen challenge her to a spar match and ask her to go all out? Especially if he's heard of how hard she fights? And why doesn't he seem to want to stand down when he knows he lost? Oneshot. No pairings.