"Young one."
"Yes, Sire?" Izuku said softly as he realigned the bones of his leg, burning a little blood to speed up the healing process.
"How?"
"H-how what?" the teen almost whispered, lowering his head slightly.
"How did you think you wouldn't break your bones falling from that height?" the older man sighed, "I told you before; just because you can heal with little effort, does not give you, for lack of a better word, reason, to ignore your well-being."
"I'm sorry," the teen muttered, "I just…I wanted to try and…"
"And you broke your legs," the man cut him off, "Again."
"I'm sorry."
"Izuku," the teen tensed as his Sire used his name, normally meaning the man was being serious, "Please. I fear if your mother found out, she would find a way to, for lack of a better word, actually kill me."
"I'm sorry Sire!" the teen replied as he jumped to his feet, "I'll do better, I swear!"
"Izuku."
His Sire's tone was flat and tired, the teen looking up sheepishly at the man that loomed over him.
"You dislocated your wrists again, didn't you?"
Izuku nodded slowly, flinching as the joints popped loudly back into place.
"Gods dammit," the older man sighed, "Your mother is actually going to kill me."
"Why?"
His Sire looked down at Izuku as the teen lay on the concrete floor of the alleyway, a pool of blood beneath him as he slowly healed his shattered body.
"I…uhm…I wanted to see how much damage my body could take?" Izuku replied, grinning sheepishly at the scowling man.
"Understandable," he muttered, "But you jumped of a ten-story building! It's like you, for lack of a better word, want your mother to kill me!"
"O-of course not, Sire!" the teen gasped, trying to sit up even as his arms crackled like fireworks, the shattered bones knitting themselves back together, "I just-."
"Please," the man sighed, crouching in front of his Fledgling and placing a hand gently on his shoulder, "Please…just stop breaking your bones."