Sherlock had snuck out, leaving him sleeping. No doubt hoping to avoid awkward questions about why the cast was getting taken off his ankle so early.

John went about his usual morning routine in the empty flat before finally sitting down to his laptop to deal with the neglected inbox from his blog. He sent polite replies to most of the messages and printed off twenty or so that he thought Sherlock would perhaps deign to glance at. Though realistically he knew he'd be lucky to get one that held the detective's attention for more than ten minutes.

He was just writing up a new post about how Sherlock had broken his ankle when he heard him returning with Mrs Hudson in tow.

'Good as new are we?' John said as they came through the door. 'I know that cast came off early. Don't want to know how you persuaded them.'

' It's fine John don't fuss, a clean bill of health.' Sherlock said breezily.

'At least promise me no fire escapes for a while,OK?'

' Mine was the same John, didn't look after himself at all.' Mrs Hudson said, shaking her head. John and Sherlock exchanged an amused glance because she was making her usual assumption - but this was the first time it had been sort of true.

'Yours ran a drug cartel Mrs Hudson, hardly conducive to a healthy lifestyle.' Sherlock retorted.

'Yes well,' She said a little vaguely. 'I just brought you this lentil soup, I made far too much for me, I'm off out for the day now my cousin's down from Leeds.'

'Thank you Mrs Hudson, you're a star.' John said, getting up and taking the dish from her.'Isn't she Sherlock?' He got a noncommittal noise from the alpha and he shared an eye roll with the landlady as he saw her out of the flat. They chatted for a few minutes on the landing about the light that was now mysteriously not working before she took her leave.

He came back inside and as he shut the door a hand reached round his side and locked it.
' She'll be gone all day.' Hot breath at his ear was soon joined by hands on his hips. He was breathing in pure aroused alpha, oxygen suddenly seemed overrated.

'I might have plans.' John said playfully, giving an involuntary yelp when Sherlock's hands tightened, pulling John back against his rapidly hardening cock.

John turned and reached for him, he actually looked surprisingly uncertain for someone coming on so strong. 'Are you sure you're up to this?' He said, fingers digging into Sherlock's shoulders.

'Of course, I know I'm inexperienced...'

'I actually meant the ankle.' John broke in smiling. I don't have any doubts about the rest of you.' He slid his hand down to rest on the alphas belt, slowly loosening it and pulling it from the loops.

'I'm fine.' Sherlock whispered his voice brittle. Then they were in motion towards the bedroom. Kisses messily exchanged and clothes discarded along the way. What they still wore when they arrived was impatiently stripped before John roughly pulled the alpha down on top of him.

So much bare skin contact seemed to calm Sherlock, make him serious. Their kisses softened as the alpha' s hand slid down John's belly and gently along his swelling flesh before moving between his legs. Tensing as his fingers found where John was sensitive, wet and, suddenly, oh so sensitive. He broke away.

'Contraception, condoms? I should have asked before now.' Sherlock licked kiss reddened lips anxiously.

'I'm on contraceptive pills and I know I'm clear. I've been tested at work . What about you?'

'I was tested for everything the last rehab I went to. Haven't touched anyone since or cocaine, I was always fastidious about needles anyway.'

'I've got some in my drawer but if you're happy like this?' The alpha nodded eagerly and they moved back into a long lazy kiss.

The omega had steeled himself a little. It wasn't that he expected Sherlock to be rough exactly, more over-enthusiastic. Actually he was gentle, heartbreakingly so. John closed his eyes, he could feel himself opening up and when a finger was slipped inside him his body was more than ready for the breach. When a second was added he arched into the contact.

He opened his eyes to find Sherlock was watching his face closely, the alpha's eyes bright and fierce. Without realising he was doing it John reached a hand up and stroked the angle of his face.

'You Ok? If it's too much for you, we can stop- any time yeah?' John said.

'I want this..you.' Sherlock said, his usual eloquence gone as he shifted between John's legs and ran fingers reverently along his inner thighs.

'I want you too.' John replied quietly, eyes running hungrily over the alpha, willing him watched Sherlock's expression change as the alpha slowly entered him. A slight uncertainty was quickly replaced ( to John's own delight) by surprised joy.

As usual Sherlock's learning process was lightning. As he began to move he must have noticed how John was trying to shift around to get a particular friction. Sherlock, with typical efficiency, realised this could be done more easily and he gently moved John's legs and supported his hips till the omega's gasps seemed to satisfy him he'd got it right.

John, feeling thoroughly taken care of, let his eyes fall closed as he breathed in the alpha, letting Sherlock's scent envelope him. The first tendrils of climax beginning to curl deliciously in his toes. A discordant noise from the alpha broke his reverie, he opened his eyes.

Sherlock looked embarrassed.

I'm ...sorry.' He said, glancing at John and then looking away, slipping from John's body and easing away a little.

John first thought was that he'd lost his erection, no big deal, he was nervous. John gently slid his hand between them. That wasn't the problem, far from it. At the base of the alphas still very hard cock a knot was beginning to form.

Knotting was, biologically speaking, draining for an alpha and outside of heats only happened regularly in adolescents, hence the embarrassment. Sherlock's long denied body though seemed more than keen. The alpha shrank away from him, all his new found confidence gone.

'Hang on.' John grabbed his arms and rolled them both till Sherlock was on his back. Pinned with a move from a long ago hand to hand combat course.

'It's fine, just let me.' He planted a quick kiss on Sherlock's forehead.

'Won't it hurt.?' Sherlock said quietly.

'Like a bastard.' John grinned. 'Sometimes does, even during a heat, but only for a second. Then it's just, really intense, hopefully for both of us. You do know though afterwards we're stuck together for half an hour, no going to check your mould cultures.' The omega reached down to fondly stroke his hair.

Sherlock smiled, beginning to relax again.

John was actually glad about the position change. It gave him a view of Sherlock's face, flushed and beautiful, as John sank on to him. As he bore down he tried to consciously relax, open just that little bit more to let the knot ease inside.

The pain was sharp and took his breath away, he was vaguely aware of Sherlock's hands coming up to grip his thighs. An instinctive reaction as the first pulse of the alpha' s cock swelled inside him. The pain was soon chased by his own orgasm. He could feel how good it had been for Sherlock in the pulls, twitches and spasms of the body below him. He was glad and proud he'd been the first one to do this for him. He leaned backwards supporting himself with his palms on Sherlock's thighs.

'Let's try and get you more comfortable.' Sherlock said softly, looking at John with a sort of awe. He grabbed a handful of tissues and cleaned John's semen off his stomach before pulling a couple of pillows onto his chest and encouraging the wiped out omega to lean forward, gingerly shifting his legs to make it easier. He finally pulled a blanket over John's back.

Normally John hated knotting. Obviously he liked coming hard well enough, but being joined afterwards was usually just plain awkward. This was different. He was enjoying the cosy feeling of the two of them bundled together, Sherlock's slim arms wrapped around him. The way his skin dragged slightly against Sherlock's as they breathed.

'You Ok?' John said softly, though it was redundant. Sherlock looked utterly content, eyes closed below him.

'Of course.' The alpha petted John's hair.

'You know, I might not be quite like that during my heat. I've been told I can be...demanding.'

May as well tell him now...

Sherlock's eyes drifted open. 'Demanding of what?'

John laughed nervously. 'The usual- asking for it harder, faster. Billy took to calling me sir.'

The alpha looked amused. 'I shall endeavour to keep up-but I am not calling you sir.'

'Just thought I'd warn you.' John grinned and Sherlock's arms tightened around him. They both dozed a little. John felt it a genuine loss when he finally felt Sherlock slip from his body.

The next couple of hours were a bit of a daze. They cleaned themselves up and John heated the soup Mrs Hudson had left. They were curled together on the sofa, John beginning to idly wonder how soon the fabulous smelling alpha beside him would be ready for another round, when a text from Greg reminded him that they did ,actually, have something to do tonight.

Internal affairs want us to wear recording devices. Will set up in car. you OK with that? GL

John hastily replied in the affirmative and organised himself to go and pick up the tuxedo that he needed.

A few hours later they were sitting in the living room, in dressing gowns,but otherwise ready, waiting for Greg.

'How is this going to work then, do I know you or what?' John said, he couldn't pretend that he wasn't the tiniest bit pissed off with Sherlock for muscling in. This had been, for a change, his thing.

'No, Anthea and I will be sitting at a table with people from various charities, well away from you. The idea is she is a caseworker for vulnerable omegas, I'm simply her alpha attending as a plus one. It should allow her to ask some slightly uncomfortable questions without arousing too much suspicion.'

'Anthea?' John asked, surprised.

'Of course, a lone alpha would stand out. That's why I'm not dressed either.' He had neglected to mention Anthea.

Just as John was about to ask more questions Mrs Hudson showed Greg in, gushing about how handsome he was dressed up. He looked worried and when the landlady left they found out why.

'I could smell you two from downstairs. Don't get me wrong, I'm happy for you, but I don't see how it's going to work for tonight.'

They had both showered carefully but now John was thinking about it medically that was never going to cut it. Knotting released hormones that wouldn't leave either of their systems for a couple of days. He was mortified to have let Greg down.

' Don't be so negative Inspector.'Sherlock said, standing and walking over behind John.

'Can't you see how a misbehaving omega could be used to you're advantage here.' He'd put a hand on the back of John's chair, fingertips brushing the back of his neck. John, in spite of the company, leaned into the contact.

Lestrade ran a hand wearily over his jaw line. 'Go on then, explain it to me.'

Sherlock sighed in exasperation having one of his 'surely everyone can see this' moments.

'You two turn up acting like you did before, perhaps you lay it on a little thicker for effect. It's obvious though, to Graeme and everyone else, that John has had another alpha.'

'Graeme will ask you quietly about it at some point, offer help, public humiliation is not his style. He will immediately see it as another opportunity for you to owe him. Combined with what appears to be your covert and subtle handling of the dead omega from the other day you are well on the way to being his favourite member of the Met.'

Greg let out a breath. 'That could work. You're thinking he'll offer assistance in scaring the other alpha off?'

Sherlock nodded. 'Or perhaps, with your inevitable aggression and sexual frustrations at knowing your omega has been with someone else.' Either way if you're wearing recording equipment you'll have him admitting criminal activity.'

Greg was nodding thoughtfully as Mrs Hudson showed Anthea in.

The brunette omega was, predictably, tasteful and immaculate in strapless, floor length, green velvet. Revealing, but not so much that it would draw attention.

Sherlock's phone chimed and he chuckled, showing it to John.

Don't break her. MH

Sherlock was replying just as Greg took a call. He nodded to John. 'Our car's here. We better do the erm..if it's still necessary?' Greg looked to Sherlock.

'Of course. You want the appearance of keeping up appearances. Absurd as that is.' He said, turning to Anthea who looked confused. 'I'll explain.'

John went after the alpha to the bedroom. A little pleased, in spite of himself, that Sherlock's eyes followed him fiercely.

Scented and dressed a few minutes later he crossed the room to squeeze Sherlock's hand briefly. Sherlock leaned forward lips brushing his ear. 'Be safe.'

'You too. Try and give your ankle a break.' John replied, squeezing harder, because he might be the alpha' s lover but he was also practically his doctor. He left with Greg realising with a stab of reflexive jealousy that his alpha was now going to have to scent Anthea.

##########

This was meant to be longer but since it's been a while I decided to post what I have. on the plus side there is smut.

Also, I think I'm making up some bits of omegaverse biology but since it's all made up I hope that's ok.

Thanks for sticking with me.