L compromised by biting Light's lip, drawing blood. If he was going to stumble back to Asgard with a bleeding face, a gunshot wound in his wrist, and probably a few more injuries... well...
Damn. He'd be lucky. He'd be lucky if he stumbled back, period.
Light was undressing, now... that could only mean one thing, couldn't it? L resumed struggling, experimentally kicking his legs.