It all started with an accidental touch one day. Mineta got on Tsu's bad side so she stuck out her tongue to beat him up like she normally did.

Mineta jumped at the last second.

Tsu couldn't stop her tongue in time, she ended up smacking Bakugo in the butt.

He practically jumped a few feet in the air putting his hand where she struck him.

"Sorry Bakugo I was aiming for Mineta." She said.

"Try harder next time, that hurts dammit. He said still trying to rub the tender area. She noticed he was blushing.

Ribbit 'How odd.' She thought to herself, turning her head to the side and curiously watched him. 'Wait, why am I staring at him?'

Her train of thought got lost after Ochako came and asked her a question.

"You want to play tag?"

"Aww man, why are you asking her to play tag? The instant you tag her she'll use her tongue and tag you back in three seconds."

Ribbit "So? If you have a problem with it you could just not play. Mineta."

"Nah I'm fine."

"Then stop complaining." Tag went well until Mineta was the one who was it and he tagged an unsuspecting Tsu by groping her breast and running away in the sand.

"Okay that's it! When I get ahold of you we are marching straight to Aizawa to get you suspended!"

"Gotta catch me first babe." He said.

"I'm not your babe!" Ribbit She used her tongue to try and capture him but he darted around the corner. She paid no attention to Kirishima who ran off saying "I gotta go before she catches me."

"Oh no you don't." Her tongue followed, she caught him. Her tongue tasted something but her mind was fueled at getting Mineta to care.

Until she came around the corner.

Bakugo was in the middle of building a sandcastle hunched down and bent over in his swimming trunks.

Her tongue had slipped inside his shorts. She was tasting the inside of Bakugo. She ran up to see his stunned, and blood red blushing face.

She retracted her tongue and heard a small moan escape his lips. "I uh…Mineta groped me and I chased after him."

"Check your damn surroundings next time." He muttered. "YOU JUST-" he lowered his voice to a whisper. "You just went inside my ass frog."

"Yeah but did it feel good?" The instant those words touched her lips she froze. 'Wait…what did I just ask him?' "Uh.." She started to blush. "What I meant to ask is, are you hurt?"

"No but I feel pretty damn violated right now. I should sue you for sexual harassment."

"And I'll just retort that you were trying to kill me and it was self defense." Ribbit.

"You wouldn't dare."

"Wanna try me?"

"No." Bakugo stood up. "Just don't let it happen again."

For some reason Tsu at that point in time decided to focus on his muscle toned body and his shapely round ass. She smacked herself in the face with her tongue 'There I go doing it again.'

Her eyes widened.

'Oh my. I think I might actually like him.'

She tried to keep her mouth closed, but she just couldn't help herself. She found small ways to try and do it, less risky and not so obvious.

"Is this going to become a habit with you now?" He sighed.

"I was picking up a book, see?"

"Learn to control that tongue of yours before I control it for you."

"Yeah? Well what are you going to do about it mister?" Before Tsu knew what was coming Bakugo was standing right in front of her.

"Do it again and find out." He gazed down at her mouth, surprising Tsu's tongue into springing out. She watched as he gently held it in his hand, rubbing it with his thumb.

Tsu contemplated doing it that very instant, but there were other people around. And her brain had stopped working after being stroked like that.

"What will we be doing?" Tsu asked Aizawa.

"You and Bakugo will be going in mine and All Might's place for surveillance. We've provided the flight path, the meals, the hotel stay and the taxi ride."

"Why does it have to be us two?"

"Bakugo will be the brain, and you can easily hide. Under no circumstances are you to engage them in a fight, do you hear me?"

"Yes sir." They both said.

"What are we looking for?" Bakugo asked.

"Anything strange."

"Anything strange? It's a little strange to me that you're wearing a dress." Bakugo said after they had gone to the specified location.

"Yeah? I think it's weird that you have your hair slicked back and you're wearing a fake moustache." 'Besides I saw the way he was blushing when I came out.'

"Yeah well I'm infamously known as sludge boy and the Sports fuck up. And right now we're trying to be incognito."

"I see your point."

"Also….will you Stop poking me with that thing!"

'Crap.' "I'm just nervous."

"And I told you the next time that happened you'd be sorry." He grinned gazing deeply into her eyes. His hand still holding onto her tongue. "Focus on the mission first. After that, you're mine."

She gulped.

"We got this."

They hadn't gotten it. In fact they were caught, fired at, and chased. It was hard for Bakugo NOT to take charge and fight. But he did it.

"Dammit, we were fine. I don't understand what happened." He said, dodging a barrage of lasers when he jumped.

"I think my tongue may have slipped, causing the alarm to trigger."

"Nothing we can do about it now. We have to find shelter before they surround the both of us and we get captured."

He heard of of them say: "One male, the other female, the male can explode stuff and the girl has a freakishly large tongue that sticks out like a sore thumb."

"Dammit, they have our descriptions." Tsu had worn a red mask with her dress. So her face would be less recognizable too.

"We need to find a restroom so we can change clothes."

"The library. We can sneak in there and change. We'll meet out front when we're done."

Bakugo had changed into a navy muscle shirt and black pants. He saw Tsu come out in a black mini skirt, knee high socks and a light purple tank top with a dark purple button up blouse, it perfectly showed her belly button.

"They have to be around her somewhere." One of the villains said. "Look for the girl with the long tongue, my guess is that it'll be too long for her to keep in her mouth for very long."

"Come here." Bakugo said calmly as he sat at the fountain holding out his hand. "Stay calm alright." He whispered as she walked up to him and took it. Their knees were touching. "Keep it in a little longer okay."

"They're looking at us." She whispered back, a bit muffled trying to contain her tongue from peeking out.

"Just focus on me, focus on my voice. I know it's hard."

"Hey, you two!"

"Time to improvise." His voice barely a whisper. "Follow my lead." He gently grabbed her head and pulled her to him. He had his mouth open and his tongue grazed her lips. Tsu opened her mouth to let him in, letting her own tongue interact with his.

It was as if her tongue had a mind of its own and upon seeing his, it retracted and made hers appear quite normal for once.

Wanting a better angle to kiss him Tsu climbed up on the fountain and sat in his lap. She heard Bakugo groan. Felt his hands reach around and grab her cheeks and scoot her closer up against him.

'How did my feet get in the water?' She wondered.

"Break it up you two. That's a bit too much PDA if you know where I'm going." These guys were still looking for them.

"Looks like we got a little carried away again." Bakugo said. "My bad. Come on." He wrapped an arm around her. "It's only a few blocks away." He kissed Tsu on the forehead. When they were a few feet away he whispered. "Whatever you do. Don't you dare look back. I can still feel them watching us."

"What are we going to do about it?"

"Keep playing the part." Tsu moaned as he tongued her again. They walked until they reached an alleyway where Bakugo had her pinned to the wall and was sucking on the tip of her tongue while her legs wrapped around his thighs.

She could feel his erection against her through the fabric. And as he inched his body closer and closer. Tsu wondered if they were still 'Acting it out' or if this was something else.

A bright light hit their faces, distracting their fake out make out session, and saw the guys from before shining a flashlight. "Sorry, were looking for a few friends of ours." He shut off the light and they all walked away.

They both let out a sigh of relief, Tsu felt Bakugo rest his forehead against hers. She opened her eyes to see him already looking at her. Felt his breath against her face. And when his eyes fell to her mouth she opened it to let her tongue roam free. Letting it ride up towards him, grazing his lips.

He moaned, opening up his own mouth letting her tongue in and darted forward to claim her lips. Bakugo used his tongue to dart forward as far as it would go. Circling her throat.

Tsu let her own tongue do the same thing. His pleasure full cries were enough for her to keep going. Suddenly he picked her up placed her legs on his shoulders so that she was facing down to kiss him while he leaned his neck backwards as far as it would go. His eyes lusted over.

Tsu removed her tongue. "We should go back to the hotel." She eyed him. Enjoying the look on his face when her tongue bumped against his backside.

"You're going to be the death of us both, you damn frog." He grabbed hold of her tongue, blushing. "I thought I told ya." He brought the tip of her tongue up to his face, using his own to taste her, he didn't leave it at that though, Bakugo kept on going tasting the rest of what had been exposed. "To keep this thing hidden." During that little adventure he heard a small moan escape her. He grinned when he had to keep Tsu from collapsing to the ground.

"Uh…."

"Listen, either get caught here making out, or go back to the hotel where we don't have to hold back."

He grabbed her hand and started to walk towards the destination that was their room.

"Okay, but are you sure you're comfortable with this? We don't have to do it if-"

"You felt the boner in my pants right?"

Ribbit "Hard to miss." They both grinned at the joke.

"Obviously I'm interested. If I wasn't, I wouldn't have bothered making out with you in the first place." They made it inside the empty elevator. "The thought of you inside me turns me on, doesn't matter where you put that thing I can't get enough." He had her pinned to the wall, felt his erection dig into the back of her skirt.

Tsu leaned into it. Leaning her head, placing her arms around Bakugo's neck, smashing their lips together at an angle. She kept grinding her hips into his. She felt his hands touch her waist and move up inside her shirt. She felt his hands reach her breasts.

Ding

This wasn't their floor, they quickly separated blushing profusely, but the three passengers paid them no attention. They both looked at each other smirking.

"I wanted to go down not up." One of them said.

"It's only two more floors, be patient." Another of them said.

"Honestly it would be faster just to take the stairs."

"The stairs huh?" Bakugo eyed her grinning. "Let's remember that next time. Less hassle." He came closer and added in a whisper. "Less chance of being interrupted."

Ribbit "Yeah, you're right about that one." They nearly ran over the other people in the elevator trying to get out and go to their room.

They didn't waste any time. Once the door closed Bakugo was back on her in an instant. "Let's finish where we were, before being so rudely interrupted."

"Bakugo-"

"-Call me Katsuki, Tsu."

"Tsuyu." She moaned out after his hands darted back up her shirt.

"I thought-"

"Tsu is used for friends and acquaintances, I only want Tsuyu to be used during times like this."

"Tsuyu." He said.

"My feet are wet."

"You getting cold?"

"Yeah. I need heat before my body shuts down."

"I got you." Tsu wasn't sure what that meant, he had asked for her foot and took off her shoe. Leaving one hand to hold her steady.

His touch on her foot suddenly got hotter and she heard the unmistakeable sound of sizzling. It felt so good against her skin.

"I didn't know you could do this." She whispered shakily.

"No one does. It's for pleasure purposes only. Now give me your other foot."

She did as she was told. Rubbing and pushing against him. Moaning at the sheer pleasure of her heated foot. His hands snaked back under her shirt, reaching up to lovingly take her mounds in his hands, as his fingers slid over her nipples, pinching, pushing, squeezing.

He quit kissing her, rested his head on her shoulder and lifted her shirt over her breasts to see them as he touched them.

He stopped to take off his shirt. Tsu decided to use her tongue and lick from his naval, across his rock hard abs all the way up until she reached his ear.

"That was sexy as hell Tsuyu." He uttered in a low growl. Taking off his pants and boxers as he did so.

"Holy cow." Tsu remarked when she saw the rest of his body.

"I'm rock hard because of you."

"Can I touch it?" For the first time she saw him glance at her and smile genuinely. Without any irritation whatsoever.

"You can do anything you want as long as he's still unharmed and attached to my body when you're done with him."

Tsu grazed her tongue over his shaft, tasting the small opening. Katsuki held her gently by the shoulders. Ever so slowly she wrapped her tongue over his length and then went towards his puckered hole. He fell backwards onto the bed.

She managed to multitask, using the tip to penetrate him, while the part that was over his erection was slowly moving up and down. With the remaining length she slid them over his own nipples. Tsu glanced at the pleasure written all over his face.

Bakugo turned his face to hers, sitting up, and put a hand against her face, sucking on the part of her tongue that wasn't already pleasuring him.

Though as soon as he did that, her tongue decided to collapse inwards, letting him suck the end.

His mouth was on hers once more, their naked chests rubbed against each other. And as she straddled his lap to get a better angle she noticed that without his pants she could feel the heat radiating off his erection. Felt his hands grab her cheeks and pull her against him.

Could feel his fingers kneed her ass, getting closer and closer to her center. The warmth of his quirk sending shivers down her spine.

Tsu stopped. claiming his lips in a tender kiss. She felt his fingers grazed the lining of her skirt.

She stopped. Eyed him with a lustful smirked and mashed their lips together, her breasts against his chest. This time both his hands were inside the waist of her skirt.

She broke off the kiss again. Eyed him and tongued him some more. Now he has them on her ass.

"Tsuyu…"

"Keep going." She moaned. Her skirt and underwear was making its way downward. "Don't stop." She felt his thumb reach her second hole and massage it. "Katsuki." She moaned as he stuck his thumb in.

"You like it back there too you naughty frog?" He asked as he pumped it inside. Licking and sucking on her breast.

"Yes."

"What about this?" He placed his other hand against her slick opening.

"Feel so good."

"You want this dick inside you?"

"Yes." Tsu watched as he laid down on his back, holding her above him, his aim as he gently placed himself at her opening while pressing her down. "Oh Katsuki." She cried once he had made it inside her. Pain became pleasure as she rode him like a horse. Moaning. She moaned even more when he stuck it inside her anally.

Katsuki got up and placed her against the wall where she straddled his waist and he pounded away. "You're mine now." He said pressing in harder and fucking with wild abandon. "You can't do anything about it.".

Moaning and yelling in unison. Until the wee hours of the night. They lay spent in each other's arms.

"Are we going to keep this between us?" Tsu asked a while later.

"For now." He said. "But I'm not going to pretend it didn't happen. Mark my words if we get more alone time together you're screwed."

"By the way, shouldn't we tell Aizawa what happened."

"Aww, Dammit." He called him on the phone and explained the situation. "Apparently he has more work for us here, but if we mess this up, he'll send Deku and Kirishima instead, and I don't know about you, but I'm not in any hurry to go home."

She felt him harden against her.

"Me neither."

The End

Authors note: Um…this just popped into my head and wouldn't leave, so here you go.

I've never thought of these two as a ship before writing this.

Runs away*