When night comes - and Clary knows when that happens, because it's like a weight has been lifted from her shoulders - she barges from her room into the place her nose told her Jonathan was, her fangs half-showing as if she hadn't drunk his blood mere hours later.
Weirdest thing, Clary noticed, stoppin on the threshold between the living room and the hallway, was how full she felt. When Clary drank cow blood, she felt hungry almost immediately later, but now that she had drank Jonathan's, she still felt full. Clary really didn't want to dwell too much on it, so she went to the kitchen, where she found Jonathan making dinner. Clary cleared her throat, and Jonathan didn't turn back to face her.
"I'm making it for myself, since I assume you don't eat anymore,", he said, the smell making her stomach turn. That… Was also odd, since she had been able to eat normally. Well, not big portions, definitely, but still. Maybe the cow blood diet was making her starve, and as such, her body allowed her to eat food? She'd have to google it later. Clary half-wished there was a Being a vampire for dummies available somewhere.
"Yeah, sure,", Clary said, holding her breath as she entered the kitchen, sitting in her usual chair. "Sorry for drinking your blood today."
"It's alright. If you need more, let me know, Clarissa", Jonathan hummed. Clary was… Tempted. The feeling of Jonathan's pulse in her mouth had been quite something, the way he felt under her… She shook her head, expelling the thoughts, and made sure to keep her eyes away from her brother's crotch.
"You seem very casual with all of this,", Clary said, putting one hand in her face. Jonathan laughed, the sound of the stove being turned off too loud for her ears.
"Clarissa, I've seen more weird shit with our dad than you can think of. Trust me, a vampire drinking my blood is nothing.", he replied, putting his food in a plate and sitting in front of her. Clary had never been so thankful for being able to hold her breath for long periods of time. "Anyway, what's a bite?"
"A blood loss. You're to have a diet heavy on iron, if you plan to be my blood supply.", Clary was very surprised with herself for accepting his offer so easily, but the sweetness of Jonathan's blood still rang in her mouth, and she decided to blame on that her easeness of accepting.
Jonathan simply smiled, showing her his plate - red meat, green leafs, beans -, and Clary looked at him with disbelief.
"Already a step ahead of you,", he hummed, going back to eating. Clary sighed, and stopped for a moment, hearing a throbbing sound, a dull drumbeat. She looked at Jonathan, and paled when she noticed she was hearing his blood flow through his heart.
Clary jumped to her feet.
"Nice job, Sebastian, but I got to go now,", Clary probably had said that too quickly, but she didn't care, running away and locking herself in her room.
She still could hear his heart beating. Clary cursed herself, picked her headphones and sketchbook, and decided to find the loudest heavy metal she could to not try and suck her brother dry. Clary was almost sure she heard him chuckle, before the music started playing, but decided to ignore it.