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“I am SO sorry!” The succubus apologized for what was the umpteenth time to the student council before her.
Y/N sighed as the demon looked at her almost fearfully. “Why is she looking at me like that?” They asked the brothers.
Diavolo could only smile. “Likely because of your relationship with him,” He chuckled.
Lucifer nodded in agreement. “Speaking of, I’m surprised you’re as calm as you are, Y/N.”
“She’s a sweet girl and has never caused any issues before. Honestly, I’m more surprised Mammon didn’t trigger it,” Y/N chuckled. “It’s not that I don’t trust Mammon but his…lack of tact tends to get him in trouble.”
The rest of the council could only nod in agreement, relenting that the human had a point.
Y/N sighed and patted her back. “Relax. I know it was an accident. So, what happened exactly?”
“Well, my uhm…what do you know about the succubi and incubi people?” She asked. Y/N just shook their head. “Right. Okay, so essentially, we can go into heat, uh, the same way human females do! The difference is instead of blood seeping out, aura? Essence? It’s hard to explain.”
Y/N hummed, thinking. “So you essentially got your period which makes your powers go a little awry?” They offered.
“Yes, yes! Exactly! I’m so sorry!” She groaned.
Asmo smiled. “Don’t fret over it, dear. It came late this time around and you thought it was missed. It happens to even the best.”
Diavolo nodded. “For the best interest, I’d actually like Y/N to walk her to her dorm to make sure she gets there safely.”
“I’m not disagreeing but, why?” Y/N asked.
“At the very least, you can learn a bit more about what Mammon is going to be going through,” He chuckled. “I’ll have Barbatos go with you to make sure you also make it back to the dorm safely as he has him in his room now.”
“That’s good,” Y/N sighed in relief. “It won’t…hurt him right?” They asked with a frown.
“Nothing more than blue-balling him,” She said frankly. “And that’s mostly because he’s a higher rank than me. If he was a low-level demon, he’d essentially be like a dog mounting anything with a hole.”
“Ew,” Levi groaned.
“Well, it’s true!” She huffed.
Y/N smiled and patted her back. “Don’t worry. C’mon. Let’s get you back. Do we need to get you anything for it?” They asked as they led her out, Barbatos greeting them both outside.
“Oh, no. I’ll be fine. Honestly, considering you two, I’d say you’re the one that needs to pick up some things.” At their raised eyebrow, the succubus smiled sweetly. “I’m going to guess you don’t want him having to wait through it.”
Their cheeks flushed at that, making her laugh. “Don’t worry about it,” She giggled. “I’m not judging. I’m literally a sex demon, Y/N. I have no room to talk.”
They smiled and nodded. “Alright yeah. I’m going to help him through it. By whatever means,” They chuckled with a wink, making her squeak.
“You two are so stinking cute. Ugh, I wish I had a man like him. Meanwhile, the demon I like is such a recluse.”
Y/N blinked as they walked to the dorms. “No way. Levi?” They asked in surprise.
Soon though, Y/N and Barbatos were outside the House of Lamentation, a bag of supplies in the human’s hand. “Thank you for escorting me, Barbatos. Sorry again for dragging you to the shop.”
“It’s nothing, Y/N,” He said with a smile. “I’m glad I can be of assistance. Are you sure these supplies would be enough though?”
“Yeah. Even with his stamina, if he’s as needy as she said, then I’ll be okay. Worst case, I’m ordering us take-out and asking Asmo to pick it up.”
“If you need a neutral party, I’d be more than happy to offer my assistance if I can.”
“Noted. Thank you again,” They chuckled as they stepped in.
With a sigh, they headed for Mammon’s room. The succubus said Mammon would mostly be needy for attention, wanting to be loved and praised. The pleasure comes from the love being reciprocated. In other words, fuck the demon to get him to calm down was all Y/N had really retained.
They glanced down at the bag. Mostly the contents were a fresh bottle of lubricant, a pack of condoms, a couple of sports drinks, and snacks. They could hear the brothers cackling in the back of their mind, if said demons saw the bag. They were just happy Barbatos was thinking more strategically, offering a certain brand Asmodeus tended to use for its durability even through roughness.
Y/N knocked on Mammon’s door. “Mams?” They called. No response. “Baby, I’m coming in, alright?”
When silence still replied, Y/N came in and blushed, Mammon was using the fleshlight Y/N had most definitely gotten him as a gag gift early on in their relationship. It didn’t take perfect eyesight when the phone in Mammon’s hand fell to the side, catching a glimpse of some photos the demon had taken of Y/N dressed in the bunny suit during their event at The Fall. Y/N’s body flushed at the memory of their frantic fucking in the club’s bathroom when the demon whipped out his phone, saying he wanted to always think about the cute suit they were ruining.
“Y/N,” He whined, sitting up as he continued to thrust into the toy. “Too much. Please. Please touch me. I’ll be so good. I’ll be good if you kiss me.”
The human could only stare in surprise before hurrying over and kissing him, dropping the bag of contents to the ground.
Mammon whined and moaned, thrusting faster as he kissed them before moaning loudly as he orgasmed.
Y/N blinked as Mammon whimpered and whined. “Baby, talk to me. Does it hurt?”
He nodded. “Yes. Wanna fuck you. Wanna fuck you so much that you feel just so damn good. I wanna take good care of you. I promise. I can make you feel amazing.”
Y/N looked down and blinked, seeing a small pool of cum on the sheets as he kept thrusting into the toy, more dripping out.
“Mams, how many times have you…?”
“I don’t…uhm…maybe, three or four? Five? I don’t know, really. Definitely more than two though.”
“Fuck,” Y/N sighed, cupping his face and kissing him lovingly. The demon moaned weakly as he orgasmed again. "Imagining that toy is me?" Y/N cooed gently.
Mammon nodded as he whined, allowingv the human to pull the toy away. He blushed more as all his cum spilled out.
"Wanted to cum in you so bad. Wanna fuck you." He collected himself a brief moment. "Treasure if i pounce i don't think i can stop."
"Good," the human said as they stood.
Y/N barely got their shirt off before the demon latched onto their chest, sucking hard on their nipple as he teased the other.
"So delicious," he moaned before throwing them onto the bed and ripped off their pants and underwear.
Y/N barely hit the sheets before Mammon's mouth was on their folds. "Oh fuck," they whined softly.
Mammon moaned loudly as he stilled, simply breathing in the scent of Y/N's cunt before licking teasingly. He growled as he listened to their moans and sucked gently on their clit.
"Fuck, Mams," they whined, gripping his hair and bucking their hips as he got more aggressive in his assault.
"So fucking delicious. I need to be in you," he moaned, rutting against the sheets. "Cant stop thinking about–" A loud slurp echoed as Mammon thrust his tongue into the human. He smirked at the keening whine they let out.
"Oh fuck!" Y/N moaned, shaking as they arched up and panted. "Fuck. Gonna…cum…"
"Give it to me," Mammon snarled before diving in more hungrily.
Y/N let out a soft cry as they orgasmed, gripping the demon’s hair tight as their back arched almost painfully. “Fuck yes!” They moaned.
Mammon moaned as he used his tongue to lap what ever juices he could manage before pulling back with a pant as he shifted forms, sitting back. He groaned as he felt his cock twitching, looking down before letting out a soft laugh.
“Taste so damn good I came again. Fuck, what’s going on with me?” He whined, stroking himself.
“Succubus,” Y/N reminded him before gently pushing him back and kissing him before reaching into the bag and grabbing the pack of condoms. “Her power makes you super horny for the person you love the most.” They grinned at the redness in his face. “Something you want to say?”
“H-Hey! It’s not like that–” Mammon went silent when Y/N gripped his face, making him shiver.
“Then what is it, Mammon?” They cooed adjusting so they were taunting him. “What is our relationship? Are you just some cock I get to use when I’m horny?”
Mammon groaned and leaned into their touch. “Treasure,” He whined.
“Answer.”
“N…No,” He mumbled cutely, making Y/N smile before a gentle kiss was against his lips. “Are you mad at me?” He asked softly.
“No. I know you’re just embarrassed about it,” Y/N chuckled softly before pulling out a condom and holding it out to Mammon’s mouth. “Last chance to back out, Baby.”
The demon snarled and gripped the wrapper with his teeth before ripping it open. “Don’t you dare hold back,” Mammon groaned.
Y/N kissed him as he took the condom and rolled it on, hissing softly. “You okay?”
“Sensitive,” He groaned, laying Y/N back. “I need to fuck you so badly,” He groaned. “Please. Please let me fuck you so good, Treasure.”
–
Levi blinked, glancing up from his game when he saw Mammon humming happily as he walked by, aiming for the kitchen.
“Hey!” Asmo cooed. “So, feeling better?”
“Yep!” Mammon said with a grin.
“Is Y/N even still alive?” Levi sighed, rolling his eyes. “They promised they’d do a dungeon raid with me later!”
“Yeah, they might be canceling,” Mammon said sheepishly. “Y/N’s definitely uh…still asleep. Sorry.”
“Damn your stupid sex drive,” Levi grumbled.
Asmo grinned. “Details, Mammon! Give me the good-good!”
“No,” Mammon said with a growl. “Y/N’s mine. What we have is ours alone–”
“You fucked me so hard I think my pussy actually broke,” Y/N grumbled behind him, looking more exhausted than ever as the demon yelped in shock and fear.
Asmo laughed as Levi grimaced, seeing the bite marks on their neck. “You look like an animal assaulted you,” Levi gagged.
“Might as well have,” They chuckled tiredly. “I’ll join the raid later. Just text me before it starts and I’ll log on.” They made their way to the kitchen.
Mammon smirked as he eyed their neck, proud of the healing marks he left on their skin. “Mine,” He thought to himself as he followed happily, needing breakfast.