They were supposed to be training of course; Simon had come back from the academy to visit everyone, but Jace still insisted that even if it was Christmas break, training still needed to happen. Obviously Izzy volunteered, and they had been throwing each other on the floor for twenty minutes. One might figure that because they were a couple they wouldn't bear hurting each other, but both were tough and competitive and didn't mind leaving with a few bruises.
Simon looked amazing.
He had grown from a lanky vampire to a muscular Shadowhunter over the past few months, and even though Izzy loved him for his sweet personality, his body was somewhat of an added bonus. Simon had loved it as well, he had started becoming more confident of himself, which Isabelle thought was really good for him.
He threw her over his shoulder onto the floor with a huff. Even if he was strong, Izzy was also curvy and big which made being carried hard for her handler. Izzy gave a menacing laugh, sitting up quickly and instantly throwing herself on him to seek revenge. It was meant to be a gesture of war, but with Isabelle's legs wrapped around Simon, her backend on his knees offering the perfect height in which Isabelle's chest reached his face, they suddenly both seemed to have different motives. Isabelle wondered huskily if he would leave a different kind of bruise on her, but suddenly Simon pressed his lips to hers and she fell back in surprise.
Isabelle kissed back, their mouths in a messy tangle of kissing, but soon she fought to be on top, pushing Simon back instead. Isabelle trailed small kisses up his neck laced with dark runes, and Simon let out a small gasp.
"Izzy-" he tried to say, even if he really didn't want the beautiful girl to stop, "Someone will see us."
"Everyones busy, no one will see us," Isabelle insisted. Simon had his doubts, but was instantly torn back into Izzy's beautiful body, and he pulled the strap of her sports bra slightly down her shoulder in order to kiss her neck.
She shivered, pulling Simon closer and letting him bite softly into her neck. Even if Simon wasn't a vampire any longer, Simon still knew it was a sort of kink for her, and maybe even if she was pretty dominate, Simon smiled when he knew it was one of the few things that made her go weak. She pulled at his silky hair, pulling him closer with a throaty groan. "Si-" she whispered as he bit at her skin. He pulled away with a grin, and Isabelle pushed her lips back on Simon's, kissing in a slow mess while wrapping her legs around Simon's back.
In the mess of kissing and groaning and grinding Isabelle barely heard the sound of someone clearing their throat. "Aren't you supposed to be training?" Maryse said bitterly.
Isabelle pulled away with a gasp to find her mother and Alec standing in the doorway. "I thought you were busy!"
Alec shook his head with a snort of laughter, and Maryse didn't look amused at all. "Isabelle Lightwood, it shouldn't matter! You are both in trouble, and are both adolescents, why would you think that doing this would be appropriate?"
The both of them stood up with embarrassment joining Maryse and Alec when suddenly Maryse grabbed her daughter's arm, noticing a bruise on her neck.
"Isabelle Lightwood, what is that?"
Izzy stopped suddenly. "Just a bruise from fighting. I fell on my- um, neck. I hurt my neck."
Maryse seemed to believe miraculously, and Simon gave a sigh of relief. Alec flushed in embarrassment, remembering his own experience having to lie to Jace about falling after his boyfriend had gotten unexpectedly frisky. The Lightwood siblings had more in common than they knew about.