A/N - Here I am again, I've been a motivated little bee this week. Alas my half term hols are nearly over so I may only manage another chapter before it's back to the grindstone but I'm really getting into the plot that is slowly forming in my head so hopefully will start updating more regularly than I did before. Sorry about the large X's denoting where the scene changes in this chapter. This is because in chapter six (or was it seven?) when I was trying to denote the switch between Dean and Cas in 1983 and Sam and Molly in the present, I had put asterisks in but I when I uploaded it for some reason they didn't appear but I didn't notice until after I'd published the chapter so sorry about that error too! Also hope I got the Siren mytholgy kind of right, if not, let's just say I've manipulated it for my own literary devices.

Thanks for all those who have added me to favourites, left me reviews or have simply read the story from the start and carried on. It gives me great joy just to write the random events in my imagination down but to know that people enjoy it makes me even happier (thanks for the ego boost hehe).

OK officially longest A/N ever. Sorry had a lot of coffee today! Hope you enjoy this chapter.

Chapter Nine

Dean leant awkwardly against the edge of the table, unsure of where to put himself or what to do. The sound of the door slamming behind Sam seemed to still be ringing in his ears and Molly's barely suppressed sobs echoed in the background. Should he fetch her a Kleenex? He tapped his foot agitatedly against the table leg before deciding he could bear it no longer, marching into the bathroom and ferociously ripping some paper from the roll. He wasn't an expert in sympathy but he wasn't completely heartless.

'Here,' he said, sullenly after returning from the bathroom, holding the paper out at arms length so that Molly had to sit up to take it from him.

The insinuation that he felt the need to keep his distance from her apparently only served to upset her further. Her face crumpled and she fell back on to the bed again, burying her face into the pillow.

'Chicks,' Dean muttered under his breath, wondering how long it would be before Sam got back. Or Cas even for that matter. He would take frustrating celestial vagueness over crying chick flick moments any day.

X X X X

Sam had no idea where he was running to but the instant his feet had pounded the ground when he first exited the motel room, he had felt the urge to sprint. He didn't care that the muscles in his legs were starting to burn, he didn't care that his breath was coming in harsher gasps with every stride he took, he didn't care that the motel was now almost a couple of miles back in the direction he came. He barely cared enough to contemplate sad it was that years of running for his life seemed to have developed his fitness levels significantly.

All he cared about was that he had done it again. He had trusted Molly, like he had trusted Ruby, and she had turned out to be nothing more than a monster. His own choice of words pierced his conscience sharply. The look on her face flickered by in his memory. Could a monster look that devastated?

Coming to an abrupt halt, he bent over, his hands gripping his knees for support as he gasped to regain control of his breathing. His mind seemed to be as erratic as his lung function at that moment in time. He had been so sure that what he felt towards this strange girl they had inadvertently taken into their care was real but now he had the knowledge that she was related to a siren. A creature capable of controlling its victim's to whatever needs they saw fit. All it took was a bit of saliva to pass on the oxytocin.

Sam stood up suddenly as one thought came to him. The feelings he had been having he had felt since he met her. They had grown with intensity the longer the time he had spent with her but until today, she had had no opportunity to control him. She hadn't tried. He had been the one who instigated the kiss.

'God dammit!' he cursed aloud, startling a bird on a nearby hedge into flight.

He turned around and looked back at the road he had run down. Did he go back and try to defend her? Was she really this innocent or was this part of the illusion? The confusion was making his head hurt. Running his hands through his ever growing hair and sighing loudly, he deliberated over what to do next.

X X X

'So you think I've been controlling Sam?' Molly asked, still hiccoughing slightly from her crying fit.

Dean drained the last drop from his beer and immediately pulled another from the fridge. He wondered why it never seemed to do anything for him these days, like it was impossible to relax. Given the circumstances of his life recently, was it really any wonder?

At least Molly had calmed down enough for them to talk. He knew chicks were emotional but it felt like she had been crying for hours or maybe that was just because he had had to listen to it.

He could still feel the unease in the pit of his stomach but something had made him choose to listen to her questions instead of taking the opportunity to finish the job he had attempted less than an hour before. Perhaps it was the depth of crying she had achieved or the image in his mind of the look on Sam's face if he returned to find Molly dead. Annoyingly Dean knew it was more than likely the latter. Even despite his recent faults, Dean loved his kid brother to death, not that he would ever openly declare that to him. It used to be a mutual, unspoken given but he wondered if Sam still knew that. He was always giving the kid a hard time these days.

'Is that why you tried to kill me?' Molly asked, bringing Dean from his thoughts.

'No, I tried to kill you because that's what I do for a living,' he said bluntly, trying to ignore the slight guilt he felt when he saw her reaction.

She's not human, she's not human, she's not human he reminded himself as though it should make a difference. Sam, after all these years, must be starting to rub off on him. Shoot first, ask questions later seemed to have turned into shoot to miss, ask questions, then maybe have a group hug afterwards, he thought irritably.

'Look, its nothing personal,' he said in an uncharacteristic attempt to redeem himself. 'But in my experience, most things supernatural don't exactly have rosy intentions, therefore I gank them before they gank me!'

'So you just don't trust anyone?' Molly asked her voice terse as though her confident attitude was starting to return now that she had recovered from her short emotional break down.

'Of the non-human persuasion,' he clarified.

Dean noticed how her expression shifted slightly, like Sam's face when he tried to hide something from him. That familiar flicker of unease. She lifted her chin slightly, as though in defiance.

'How do you know I'm not human?' she challenged, sitting up straighter on the bed.

Dean laughed, almost scornfully. The look on your face, he thought, you know there's something not right about you. He chose not to voice this thought.

'Uh, your mother was a siren?'

'What about my father?'

'Huh' was all Dean managed before the door to the room burst open.

Sam stopped mid-run, his hand still on the doorknob and glanced from Dean to Molly who sat in the same position on the bed as she had been when he left, still very much alive. Relief washed through him and he exhaled loudly, his heart thumping painfully against his rib cage.

'What?' he heard Dean ask, a little irritated.

'Nothing, I just thought – ' Sam started to reply but then realised he wasn't sure how to explain that he had feared he wouldn't get back in time, that Dean would have murdered Molly whilst he was absent. He clearly had temporarily lost his mind and not given his older brother any credit at all.

He turned to look at Molly, trying to think of the best way to apologise for his abrupt exit. Dean would always criticise him for giving people the benefit of the doubt but he had decided that he was not about to change now. He struggled to sleep at night as it was with everything he had weighing on his conscience; he didn't need to add anything more.

A scream from Molly cut through the sudden moment of silence as Castiel appeared, from nowhere as always, clearly startling her. In the corner of his eye, Sam noticed Dean twitch slightly in surprise as well.

'Damn it Cas!'

Sam repressed the urge to laugh as Molly and Dean both simultaneously expressed their disapproval at Castiel's unrelenting need to literally drop in unannounced. Castiel glanced briefly between the two before clearing his throat and turning so that he faced Molly directly.

'We need to go. I have a lead on your father.'

A/N - Would just like to announce after watching the 100th episode of Supernatural for the first time the other night that Jensen Ackles is an absolute legend! Not that that wasn't obvious already but it just had to be said. Also, loving 'Kick Ass Cass' as I have now affectionately dubbed him. Keep rocking the trench coat Misha Collins! Yup, definitely had too much caffeine today!