Thread by @bittybitt39

#bkdk #bakudeku #cheating #unnamedalpha #alphakatsuki #omegaizuku #piningKatsuki #omegaverse #angst #fluff #smut

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Izuku hushed himself as he heard his alpha unlock the front door of their apartment. He had hidden himself in the master bathroom, hiding away to surprise him

Since he got Home early from his patrol today. He knew his alpha got home from his desk job around this time each day, came into the bathroom to shower, before relaxing till Izuku got home from his own job.

He wanted to spice it up since he had noticed how distance the alpha

Had been from him lately. He listened closely as he stood by the door, peering out to see when he could jump out to surprise him.

It wasn’t until he heard another pair of footsteps and a muffled voice he hadn’t heard before, did he realize someone else had come into the

Apartment with his alpha. Izuku, as quietly as he could, looked around for his robe he had discarded somewhere and slipped it on.

He definitely didn’t want to be caught butt ass naked in their bathroom if his alpha had a friend come over. He was just tying the knot together

When he heard the door to their bedroom slam open. Izuku jumped, and quickly put a hand over his mouth to stop his yelp as he heard more than saw the two stumble into the room together.

Izuku peered into the bedroom, and his heart sank...

He couldn’t believe what he was seeing... the alpha he has spent the better part of the past two years with, and moved in with just a mere six months ago had his lips locked with another male.

Not only that, but they were hastily undressing one another as well.

Izuku couldn’t look away, even though he could feel his throat tightening up, and sobs threatened to come to the surface. His heart was pounding, and all he could hear was the ringing in his ears which only intensified the sounds of the alpha and his companion continuing

To exchange kisses.

Izuku could only hazily stare at the two figures until he heard the other speak between heated kisses.

“How long do we have?”

The alpha kissed down the others neck as he rid the other of their shirt and made to remove the belt that held up his companions

Pants. “Hmmm... probably at least 2 hours.”

“Good. I don’t want to rush this. Especially since it’s the first time we do this at your place and not at mine.”

Izuku’s omega whined, hearing that this wasn’t the first time.

And clearly by the way the two looked at each other

When they were finally stripped bare, it wouldn’t be the last...

Izuku turned then, thoughts of walking out and confronting them all but leaving his mind. He could feel the drop coming on strong. Who wouldn’t after seeing the alpha he had given himself to for the last two years

Cheating on him. And hearing it wasn’t the first time.

He slowly slid down the wall, and grabbed at the robe that was wrapped tightly around him.

He could vaguely feel a weight in his pocket, and he reached in to discover his phone.

He could only think of one person to

Text at this time... and with shaking hands he sent a message before his mind completely went blank with the omegan drop coming on.

Katsuki’s phone buzzed in his pocket.

He ignored it in favor of blasting the villain away from him. His normal patrol had turned into a villain chase, and he was just wrapping up with Red Riot since Deku had left early for some stupid ‘special occasion’.

He hated that shit,

And he hated that fucker who took Izuku from him when he had just gotten the courage to finally try and court the omega he had his eyes on since their second year at UA.

Now five years out and having just started their own agency, he felt like he had truly missed his chance

In being with the omega.

Sure he still had Izuku as one of his closest friends and was the other half of his Wonder Duo - much to the annoyance of that other alpha - but it wasn’t what Katsuki wanted.

He wanted so much more.

He sighed as the cops arrested the villain,

And turned to face away from the news anchors who were shouting at him for a statement.

He pulled out his phone, seeing a message from Deku and his brows knit together. All it read was,

‘Cheat. Come. Drop. Bath.’

Kirishima nudged his shoulder and katsuki looked up at his other best friend who had a concerned expression on his face. “You okay bro?”

“Yeah, just, got this weird as fuck message from Deku. Do you know what this means?”

He handed Kiri his phone, and Kiri looked over the

Message before his eyes widened. “Dude... I think Mido bro is going into an omegan drop...”

Katsuki quickly scrambled for his phone and looked back over the message, “why the fuck you say that?!”

“Cause I’ve received a similar message from Denki before, before he went into

His own drop. Their minds literally shut down and just simple words are all they are able to process. Should we go to him? I think something much have happened at his apartment because that’s where he was going home early today right?”

Katsuki pulled at the front of his

Hero uniform as he looked over the message a few more times. A dangerous growl ripped from his throat as he looked up to meet Kiri’s eyes. “I swear to fuck if this message means what I think it does - I’ll tear that extras dick off and feed it to whoever he’s dicking right now.”

Katsuki slammed open the door to Izuku’s apartment as soon as he got the key finally inserted into the lock. He wanted to blast the door down, but Kiri had claimed its better to just walk in than blast in and cause more trouble.

Thank fuck Izuku had given him a spare when he

First moved in with this fucker. He heard moaning coming from the master bedroom, and katsuki could hear the bed creaking.

He grimaced, hoping that it was the fucker with someone else rather than Izuku. Not for the pain this was clearly causing izuku, cause fuck that shit,

But because he literally couldn’t take that shot to his heart.

He didn’t even have to kick in the master bedroom door, he just waltzed in and gagged at the sight before him.

The extra had another on his back, in the middle of the bed he fucking shared with Izuku, fucking

Ploughing into him as hard as he could. The pheromones in the room were aggressive, and Katsuki’s alpha practically howled in pain as he could smell the subtle undertones of omegan drop coming from the bathroom door night next to him.

The extra’s companion happened to open

Their eyes then, and they met with Katsuki’s before recognition came into them and lust faded.

They jerked away from the extra, and he turned then to see what it was that made his fuck buddy jerk away from him.

He met nearly feral alpha eyes.

“Bakugou-! What are-? The fuck are you doing here?! Get out!”

“Oh I’ll get the fuck out alright, just came to pick up something you clearly forgot about. Not like you ever fucking gave a shit about him anyway.”

The extra had the decency to look confused, before he opened his

Mouth to speak again. “What are you saying...? If this is about Izu, we can handle that conversation later. I’m sure you underst-“

“Understand what you fucker?! Understand you cheating on ‘your omega’ with what?! Another fucking alpha?! What the fuck is wrong with you?!”

“Baku-“

“No! Fuck you! You don’t deserve him. You don’t deserve shit and that’s why I’m fucking here to help pick up the pieces that should have never been fucking caused in the first place because he should be cherished you fucker! God you are so fucking FUCKED when I can get

My fucking hands on you!”

“Get the fuck out of my apartment. We both know Izu will take my side on this if you so happen to-“

“Guess what fucker! You may believe you have him wrapped around your little finger, but you’ll never take what we have away. Especially now!”

Katsuki moves towards the bathroom door, and opened it slowly as he heard a quiet whimper coming from within. “Deku...?”

He heard the extra and his companion gasp, and quickly gathering clothing from what he could tell.

He spotted the huddled up form on the bathroom rug. His body was curled around itself, and was shaking aggressively like he was facing a blistering cold. Katsuki could just make out the quiet whimpers that answered to his call.

Katsuki reigned in his angry scent. He knew he had

To follow his training this particular instance since he knew Izuku had been in this dropped state for at least 20 minutes now.

“Deku, it’s me. Kacchan... can I come closer?”

He could only hear a quiet hiss. So he pushed out a soothing scent to try and reach the omega.

His scent should be familiar enough to get him to let him close enough to pick him up.

The omega grumbled before the hiss evened out and eventually became a quiet purr.

Katsuki moved then, stepping closer to the omega and placing a hand on his head to gently rub his scalp.

“There there. Good omega. Gonna take care of you. Promise. I’ve got you.”

Izuku’s omega only responded with a quiet purr, and katsuki moved slowly to place his two fingers on Izuku’s wrist, checking his pulse. It was extremely slow, so he had to move fast.

“Izuku... I am going to pick you up. Take you someplace safe. This place isn’t safe anymore. Okay?”

It took the omega nearly a minute to respond before a subtle purr announced it deemed Katsuki safe enough to be moved.

He quickly placed his arms under Izuku’s shoulders and

Knees to lift him up. He placed the omega’s face into the crook of neck, knowing he needed to smell the constant reassurance to feel secure as he moved to leave the bathroom.

As he stepped out, he locked eyes with the alpha who caused all of this.

He seemed shocked,

And looked guilty enough as he reached out to touch Izuku. Katsuki released a deep growl, in turn causing Izuku’s omega to hiss at the threat coming near them. The extra had the audacity to look shocked at the reaction.

“Izu-“

“You don’t fucking ever speak to him again.”

“If you do, I swear to the almighty Kami I’ll come and personally rip off your dick and shove it so far up your ass they’ll never be able to find it.”

“He’s my omega let me-“

“NO! After what you did? You fucking think I’m ever going to let you near him again?!”

“It’s not like he is yours to keep Bakugou. Even though we both know that’s what you truly want...”

Katsuki grit his teeth, ignoring the cruel smile that formed on the other’s face.

The quiet whimper from omega calmed him, and he took a deep breath before moving out of the

Room.

“Get fucked.”

“Hey-! You stop right there- you can’t just-!”

“I can and I will. You can’t fucking stop me.”

Just as he stepped outside, he turned to the other alpha and gave him his darkest glare he could muster.

“Don’t you EVER come near him again.”

TBC?

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Here is the start of Part 2 for the #BKDK #unnamedalpha #cheating #piningBakugou thread!