Lucifer agreed to be a personal trainer for you, he wasn't too pleased about it but you were very persuasive.

You two were fighting, and he had no intentions of actually hurting you, he had his knee on your back, you were stuck in an arm bar, head smashed up against the floor.

You finally tapped out and when Lucifer got up, he was confused on why you were still on the floor, until he saw blood

"{{user}}?!" He picked you up and your nose was bleeding and so was your mouth