This is the first time that I've written something like this so sorry if it's not very good.
Blaine watched as Sebastian walked over to Kurt, he walked around with an air of superiority. Blaine hoped and knew that Kurt would probably take the arrogant Warbler down a peg or two as soon as he noticed that Sebastian was in the vicinity. He waited in anticipation as Kurt's head moved so that Sebastian was in his line of sight, Kurt visibly tensed and his mouth became a hard line that showed just how much he disliked the young man.
"What do you want ferret face?" Kurt asked as Sebastian stopped just in front of Kurt.
"Your boyfriend, obviously." Sebastian said with a smirk on his face, it was obvious that he wanted to annoy the fashionable boy in front of him.
Kurt looked at him, his face unreadable as he tried to figure out how on earth he was meant to get the other boy to back off.
"I mean, it shouldn't be that hard. He must be so bored with you, with all your layers and your gay face. Especially since you practically look like a girl, no wonder he doubted his sexuality if he found himself attracted to you." Sebastian said, breaking out into a smile as he thought of how his words would affect the boy in front of him.
Kurt opened his mouth then shook his head and walked off in the direction of the parking lot where he had parked his car, he had lost interest in the shopping for a spontaneous present for Blaine that he had planned.
Blaine watched Sebastian walk off with a satisfied smirk on his face, that look alone was enough to make an overpowering anger surge up in his chest. No, he couldn't let it take over, not while he was still in public.
'Then get him somewhere not so public.' a voice said in the back of Blaine's mind, the voice that Blaine associated with Yonsuf. Yonsuf was the name of the demon that possessed Blaine when he was younger, most of the time they happily cohabit the single body, however when Yonsuf was angry he tried to take over. Yonsuf was very protective of Kurt and so the scene that they had just witnessed was enough for the demon to try and take over Blaine's body.
Blaine started walking off in the same direction that Sebastian had walked. Within a few minutes Blaine could see Sebastian walking just ahead and all he could think of was getting Sebastian somewhere private so he could 'deal' with him.
'Damn it Yonsuf! Stop making me think things like that, I will get him somewhere private and we will talk about this rationally and then he will leave Kurt and us alone.' Blaine thought trying to get the demon to just calm down.
Blaine could feel Yonsuf scoff in his head but chose to ignore it as he tapped Sebastian on the shoulder.
"Hey Blaine! What you doing here?" Sebastian said as he turned and saw that Blaine was next to him.
Blaine just shrugged slightly, smiled and pointed to an alleyway that was just off the street they were on. He started walking towards the alley and felt Sebastian follow behind him.
'Perfect.'
As soon as they were in the alleyway Blaine pushed Sebastian against the wall where no one on the street could see them.
"I knew you'd give in eventually Blaine, after all who could want that bad excuse for a boy that you call your boyfriend?" Sebastian said, pulling Blaine closer to him.
It was at that moment that Blaine lost his hold on his body as Yonsuf's anger raged even harder and he completely took over their body.
"Listen to me you little shit, you've hurt Kurt. No one gets away with hurting Kurt and lives!" Yonsuf said snarling and glaring at Sebastian.
Sebastian looked at Blaine and saw that his eyes were completely black, 'A demon, shit!' was all that Sebastian thought as he realised the situation he was in.
"Does Kurt know about you? I'm talking to the demon by the way. Kurt would never love someone that had something so evil inside of them, what are you planning to do when he finds out?" Sebastian said trying to get the demon distracted enough so he could possibly escape.
"Oh, Kurt loves us both. He does love it when I go demon on him." They both said, smirking at Sebastian as his face turned to one of pure horror.
Yonsuf had had enough, he raised his hand and plunged it into Sebastian's chest, twisting and jerking it as he sank his hand further in prolonging and heightening the pain. In the back of his head he could hear Blaine trying to get him to stop, but even Blaine thought that Sebastian deserved this, no one hurts their Kurt and gets away with it.
Sebastian's eyes were huge as he looked at the hand that was in his chest, only the wrist poking out of it as the whole palm was embedded in his very body. He felt a hand close around his heart and knew that this was the end, he was going to die here, in an alley as a demon pulled out his heart for hurting its boyfriend.
Yonsuf gave one final smirk to the boy as he ripped his heart straight out of the boys chest. He threw it to the floor with glee as he started to walk away from the still body of the boy that hurt his man, his Kurt.
'Hey, he's mine too' Came Blaine's voice from the back of his head.
'I meant the both of us you idiot!' Yonsuf thought back as he made his way to the public bathrooms to wash his hand, luckily he was wearing a long sleeved shirt so no one saw his hand while he was walking.
Whilst he was methodically washing the blood off his hands, Blaine slowly slipped back into control now that Yonsuf's rage was quelled.
When his hand was completely clean Blaine walked out of the bathroom and made his way back to the car.
'Now,' Blaine thought 'I can go see Kurt to cheer him up, not that he'd know that. He'd just assume that I was bored and decided to come over.'
He started his car and drove in the direction of Kurt's house. His boyfriend who was safe at his house, away from Sebastian. Yes, Kurt was safe and happy and most importantly his.
Please leave a review with criticism for me so I know how to improve this. Hope you enjoyed it.