Reader discretion is advised - mild sexual content

"I'm exhausted. Consecutive akuma attacks in three days? We haven't been able to relax one bit." Marinette laid in her bed with a sigh.

"Aw, come on Marinette. It can't be too bad! You got to spend loads of time with Adrien and Chat Noir." Tikki tried to cheer her up but to no avail.

"Oh Tikki, what am I going to do? I just got into a relationship with Adrien and now Chat Noir doing all sorts of wonders to my head." She sighs once again, putting a pillow on her face.

"Maybe now would be the perfect time to tell Chat who you really are. Chat's swooned with Ladybug and taken away by you Marinette." Tikki nudged Marinette, giggling. "How much do you want to bet that Alya caught the smooch he gave Ladybug?"

Marinette sat up in her bed, looking at Tikki. "There's no way!"

Tikki giggled mischievously. "There's only one way to find out." Tikki flew down to Marinette's computer and Marinette quickly followed, Tikki already having turned the computer on.

Marinette pulled up The Ladyblog and the first thing she sees plastered on the front page is a screenshot of their kiss.

"LadyNoir confirmed! Ladybug & Chat Noir vs Lady Beetle & Chat Blanc? Click the video!"

Marinette watched the video, watching their combat with their other selves, until Chat Noir planted a kiss on her lips.

"Oh my god." Marinette mumbled, embarrassed by just watching it.

"Jealous?"

Marinette practically jumped out of her skin, turning around quickly to see the black cat sitting in the chaise. Marinette put a hand to her beating heart, trying to take deep breaths to calm herself down.

"I know, I take your breath away princess." Marinette deadpanned now and went to him, grabbing one of the pillows of the chaise and hitting him with it. "Hey!" He laughed.

"What the hell are you doing in my house? I didn't invite you in." Marinette said after she finished hitting him.

Chat Noir chuckled, laying back in the in chaise. "You left the kitty door unlocked, so I let myself in."

"Kitty door?" He pointed to the door that lead to her terrace, a smirk on his lips. Marinette gave a sigh, she had left it unlocked but not to let the stray cat in.

"So what are you doing here?" She asked, sitting towards his head. "Don't you have some place to be right now?" She ran her hand through his hair and he immediately leaned into her touch, a purr growing in his chest.

He quickly put his head into her lap, closing his eyes and enjoying her touch. "Yeah, I should be patrolling." He replied and she hummed.

"And why aren't you?"

"Because I wanted to see you." He opened his eyes and they met with hers. "I got first dibs on you anyways, remember? Several weeks ago?" A smirk crossed his face and she rolled her eyes.

"I'd prefer not to remember." Marinette mumbled.

Chat chuckled, his green eyes focusing in on her features. "Why not? Am I that bad?" Chat turned and was on his hands and knees, hovering over her.

"That's not the issue Chat." Marinette replied, avoiding his gaze.

"Then what is it Mari?"

She fidgeted under his gaze and the way he called her name. "I said I had a boyfriend, Chat." She had meant to say it with a stronger tone of voice, but found herself barely whispering.

"Mari."

She let out a soft whimper at the way her name rolled off his tongue and he started to get closer, her eyes fluttering shut.

"Mari!" The two jumped.

"Oh my god, it's Mama. Chat, go, go, hide somewhere, hurry now!" They both scrambled up and they bumped into each other, harshly whispering to each other. "Bed! Now!" Chat nodded and quickly jumped up to Marinette's bed hiding under the covers as the trap door to Marinette's bedroom opened.

"Mama! I-I was just about to go to bed."

Sabine smiled at her daughter stepping into the bedroom. Marinette threw a weary glance up to her bed before smiling at her mother.

"I heard that there was an attack at school today." She sat at the end of the chaise, looking down at one of the buttons. "Were you hurt at all?"

"Not at all. Ladybug and Chat Noir saved the day."

Sabine let out a soft smile. "I'm glad to hear it. I have to thank them personally one of these days. I'm just so happy you're safe."

Marinette came closer to her mother and they shared a hug before she kissed Marinette good night. "Good night Mama."

"Good night Marinette." Her mother left through the trap door and Marinette went up to her bed, removing the blankets off the bed. Chat was there, "seductively posed", propping his head up in his hand.

"Me-ow." He winked and she rolled her eyes.

"Did you hear Mama? She said she thanks you." She sat down on her bed, crossing her legs beside him.

"I wonder what Mama would say if she were to know that you would be sharing a bed with Chat Noir tonight."

She was quick to avoid his gaze but she couldn't avoid the two clawed fingers that began walking on her thigh. "S-Surely you'd be toast." Marinette cursed herself for stuttering because now Chat knew that she was in his paws.

"And be hotter than I already am?"

Marinette snorted a laugh and Chat smirked as well, moving his claws on her thigh in swirls. Marinette's body betrayed her as it shivered under his touch and she pulled her blankets over her as an excuse to she's cold.

"Good night Chat Noir. You should leave now." She turned to her back to him, pulling her blanket well up to her neck as he removed his hand from her thigh.

Chat let out a chuckle. "Not even a good night kiss?" He asked teasingly.

"In your dreams."

Chat smirked and he straddled her, before beginning to tickle her. Marinette gasped and tried to push him away, kicking her feet as she tried to fight the tickles and laughter. He continued to tickle her to the point where she was in tears, begging for him to stop and the blanket on the ground.

Chat stopped, putting his hands on either side of her head. Marinette was still giggling, her lungs gasping for air and her stomach twisting with all the laughter.

"Maybe. But I'm sure I'll be in yours." He let out a smirk before crawling downwards, bringing his eye level to her revealed stomach. With all the wiggling she had done to stop him tickling her, her shirt had rode up and he was going to take an advantage.

"H-Hey, wait-" But her voice was cut with a gasp as Chat began to place soft, warm kisses on her stomach, leading upwards.

He trailed many soft kisses, occasionally licking, up and stopped before he reached her bare breasts, where her shirt had stopped rising. Chat skipped over her shirt and moved to her neck, allowing his kisses to become gentle sucks.

Marinette's body shuddered under his attention, her skin alive with all the warm kisses he left her. By the time Chat reached her neck, she was completely at his mercy, a mess of writhing and small moaned hums under him.

Chat moved down her neck and to her collarbone, where he kissed gently at first, before Mariette realized it was getting increasingly warm and almost hurting a bit.

Chat stopped and looking at the brand new, red and pouted love mark he left on her, complacent with his actions.

"Marinette?" He asked, his voice in a deep tone that made her shiver.

Her eyes fluttered open, the blue in her eyes many shades darker. "Yes Chat?" She whispered.

Chat started into her blue eyes, so drawn in, so lured by her look that he wanted to claim her fully his right then and there.

"Do you want to see who I am behind this mask?" He watched as her eyes widened and fear partially took over. He understood her fear and would accept any answer he gave her.

Marinette's hand went up to cup his cheeks and she brought him close, pressing her lips against his.

The kiss was a hesitant one, one that Marinette had to melt into before it was a mixture of her wrapping her arms around his neck and him slipping his arms around her back to arch her closer.

They parted for air, the two of them not letting each other go. "Another time, kitty." She said between breaths.

"I promise I won't disappoint." He pecked her lips and Marinette swore she wanted more but held back. Chat let her back down onto the bed before peeling himself off of her.

"This, by the way." He pulled the neckline of her shirt, pointing to the flourishing hickey on her collarbone. "Is my mark on you. You're mine." He smirked as he caught a glance of the tops of her breasts and she quickly gasped, putting her shirt back in place and looking good down.

"Chat, you didn't."

"Oh but I did." Chat smirked and he left her bed, going down the stairs and towards the trap door to the terrace. "Good night my princess." He mini saluted her with two fingers before disappearing into the night.

Marinette's dreams that night were less than innocent and into full blown sin with Chat. Marinette nevertheless felt guilty, really guilty the next morning, even more when she saw the superficial bruise she had on her collarbone.

"I can't believe he actually did this." Marinette sighed, fixing her shirt.

Tikki giggled. "Chat Noir sure is a naughty cat, isn't he?"

Marinette groaned. "Tell me about it." She moved her head around a bit, trying to see if the love mark he left behind would be visible. "You don't think he saw you, did he? If he keeps coming around so often, he's gonna get onto me that I'm Ladybug."

Tikki giggled. "Well, why don't you find out who he is? You may be surprised as to who it is."

Marinette truly considered it, but she was afraid.

Putting the thought behind her, Marinette headed to school. Once at the front doors, she was greeted by Alya, Nino and Adrien. She approached Adrien shyly and he smiled, giving her a kiss on the cheek.

"Late night visitor last night?" Alya asked with a smirk and Marinette could feel her stomach drop.

"What do you mean?" Marinette laughed nervously and Alya turned her phone horizontally before showing it to Marinette.

"You can't deny it, he was in your room last night." Not only did she have one photo, but several. One of Chat closing the door, another of him getting his baton, another with him extending and then disappearing into the night. "You better step up your game Agreste, before the cat steals her tongue."

Marinette gaped, trying to figure an answer before looking at Adrien. "A-Adrien, really, i-it's not what you think!" Marinette stammered.

"I know." Adrien said with a smile, genuinely confusing all of them.

"Hold up, what do you mean you know?" Alya asked.

"I know that Chat Noir is visiting Marinette." Adrien said, looking all of them in the eyes, getting suspicious looks from Alya. "Look, Chat happens to be a close friend of mine and I told him to protect her for me whenever I can't."

There was a silence.

"What? No way, that's so cool, I wish I was cool with Chat like that." Nino playfully punched Adrien in the shoulder, while Marinette let out a quiet 'oh' and Alya remained silent.

The group turned to go inside, Adrien and Nino taking the lead, Marinette and Alya following behind their boyfriends.

Marinette didn't feel all the better now knowing that Adrien put Chat up to this. Because now she felt guilty that Adrien's friend is doing all this stuff to her. Not to mention the hickey on her collarbone. She didn't even know that Adrien and Chat were friends in the first place.

Alya remained silent, watching Adrien's back as they walked. Good friends with Chat Noir?

The school day was a normal one, to Marinette's relief. When Chloé entered the classroom, she did look at the two of them, Adrien and Alya now having returned to their usual seats.

With Evil Queen gone and Chat and Ladybug to the rescue, it seemed that Chloé did learn a valuable lesson and seemed... almost nicer. As nice as Chloé Bourgeois could be.

The day dragged on, with guilt festering within Marinette. She didn't know how to bring it up to Adrien that she was cheating on him with the one and only Chat Noir, his friend.

"I have to stay for fencing practice today." Adrien told Marinette as she was closing her locker.

She was hoping they would be able to spend some time together today, but more than likely, it will be impossible for today.

"Aw, okay. Have fun okay?" The two smiled at each other and he gave Marinette a tender kiss on her lips.

"Will do princess. See ya later." Everyone had something to do, so they all went different ways. Adrien was putting his clothes in his locker when Alya popped up.

"Holy- Alya, you scared the living daylights out of me."

"Alright, spill it." She said.

Adrien looked at her, confused. "Spill what?" He asked.

"Oh, the 'Chat Noir is a close friend of mine'." She mocked him. "Nobody becomes good friends with a superhero without telling me. And so suddenly. Plus, why are you so okay with Chat visiting Marinette? What if he's smacking her up behind your back?"

"Alya-" Adrien sighed and Alya snapped her fingers.

"So I call bullshit." Alya grabbed his right hand and took the glove off, looking at the ring Adrien never took off. "You're him, aren't you?"