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It's Just Human Nature (MysteriousD/DaddysLittleSkank)

"Oh, it's right over there," Finn said as he sat up and pointed to the bathroom with a smile. "What's with the funny look?" Finn asked, given how Morgan was looking at him.

Diego happily returned the kiss with Marceline, his tongue danced with ehr forked one and caressed her pointy teeth as he maintianed the faster but gentle pace. "Ooooh... I'm gonna cum soon," he said to her. "At the least, you said you're looking forward to having bigger breasts," he told her
 
"I don't know how things are here in Ooo but from what I know a girl only wears a guy's clothes if they're dating." Morgan explained.

"Me too." Marceline moaned as she tried to put off cumming as long as possible want Diego to cum before her.
 
Finn blushed brightly and rubbed the back of his head in embarassment. "I didn't know... not like that ever happened before," Finn confessed. "Does it bother you though?" he asked her. Finn never really got that much with relationship with Flame Princess. She couldn't wear anything of his anyway outside of the oven mitts.

Diego held onto Marceline and groaned out in ecstasy before he came at the same time she did. He groaned in pleasure as he filled her up once more with his cum. "You like that?" he said, sweating and panting, yet utterly in heaven of being with her.
 
"It doesn't, I just wanted to make sure we're on the same page here." Morgan said taking the dry clothes from Finn and going into the bathroom. A few minutes later there was a soft thud from the bathroom.

Once Marceline felt Diego's seed shooting into her, she cam letting out a loud moan. "No, I don't like." She said teasingly. "I love it!"
 
Finn sighed in confusion over growing emotions and complex feelings as he laid back on the room. He think he was growing to like Morgan and he didn't know how to do deal with that, especially since she was human. He laid his head back on the bed while he was in thought. However, his thoughts were interrupted when he heard a thud from the bathroom.

"Hey Morgan, you all right?!" Finn said, thinking the worst as he opened the bathroom with a worried look on his face.

Diego felt Marceline also cum on his cock, milking him for more of his seed, giving her the second cream pie that she wanted. Her approval just made him go more inside of her. "Glad I can pleasure you," he told her with a smile as he was panting. "How do you feel?" he asked her, making sure she wasn't too tried or hurt or anything.
 
Morgan had accidentally knocked something over and when Finn entered she was bent over picking it up. She'd already undressed, even taking off her underwear and bra in order to ring out the water before she planned on putting them back on and putting Finn's dry clothes over it. This meant when Finn entered the bathroom he was greeted by the sight of her exposed pussy, and to make matters worse Morgan's natural reaction was to freeze.

"I'm fine." Marceline stated as she kissed. "And ready for round three." Truth be told she was starting to get a bit tired but she knew she could go at least two more rounds. However given that she was pregnant, she didn't want to risk it and decided one more round was good enough.
 
"Morgan, you all right?!" Finn asked her before he saw what happened. His mind stopped when he saw it was Morgan... a naked Morgan and he caught a glimpse of how a real humane female look at it. He immediately closed the door. "OH MY GOB, I'M SO SORRY! I HEARD SOMETHING FALL AND I THOUGHT YOU WERE HURT!" he yelled through the door.

"Any special positions you wanna?" Diego asked her while he happily kissed Marceline back as he sat up a bit while caressing her. He leaned in to kiss her neck once more.
 
After Finn left, Morgan continued to stand there in shock not knowing how to respond. Hearing him yell semi broke her out of this just enough to respond, "It's okay, you didn't mean to."

"If we go upstairs, I have an idea." Marceline said. "I'm reading a book about pregnancy and in the later months the number of position become pretty few, so I want to give one a try."
 
Finn was bright red in the face and his mind was working in overtime as he saw a naked human girl for the first time and long-hidden instincts and emotions were rushing out. He was taking deep breaths and trying to calm down. "You're not mad at me?" he asked her through the door.

Diego smiled and nodded before he gently picked up Marceline and headed toward their bedroom. "What's the position you wanted to try , sweetie?" he asked her while holding her bridal-style.
 
"Do you have a boner?" She asked bluntly as she rung her underwear and bra out over the bathtub before putting it back on. "Coz I'd be insulted if you didn't."

"You'll see," Marceline said with a wink. Once in the bedroom, Marceline grabbed some pillows and sat on the end of the bed using the pillows to support her back. Once she was comfortable, she again spread her legs saying, "Im ready whenever you are."
 
Finn was disrupted from his train of thought of dealing with the intense amount of new emotions by what she asked. "Wait what?" Finn asked her, pretty confused. He heard Marceline say it once or twice, but he never got around to asking what she meant by that. He figured it was a human term, but he had no idea what she meant by that.

Diego blushed a bit at Marceline's wink. He gently set her down on the bed so she could prepare her position. "I'm always ready; you drive me wild after all," Diego whispered in Marceline's ear before he gently entered back inside of her, while he held her. He was going at a slower pace, focusing on going deep while he held her.
 
Morgan figured Steven didn't understand what she meant so she further clarified by saying, "Is your junk getting bigger?" She really didn't know any other way to explain it.

Marceline let out a long soft moan as Diego slid his way back in. It was definitely odd to Marceline that she wanted to have sex with Diego and only Diego, up until that point she'd always wanted to have sex with guys other than her boyfrien but not this time.
 
Finn blushed a bit with what Morgan said before he looked down at his pants. Besides seeing that there was a growing lump there, he was filled with a warm feeling that he had no idea how to explain or ever felt before.

"Um y-yeah," Finn said nervously. He figured it was something natural, but he didn't know how else to explain. It was a new feeling.

Diego leaned a bit to kiss Marceline while he kept his slower pace. This kiss was gentle and filled with a soft form of intimacy, all while Diego's fingers ran through her smooth jet-black mane. "How do you feel?" Diego asked her as he kept up the slower pace.
 
"That's a boner." Morgan explained secretly taking her clothes back off and looking through the keyhole in the door to see where Finn was. "It means your attracted to me." She waited until Finn had his back to her and she sneaked out of the bathroom, tiptoeing behind him. "It means you're turned on by me." She whispered in his ear as she reached around and slid her hand into his pants. She took a firm but gentle grip of his dick and slowly begun stroking it.

"Good," Marceline replied between her moans, "but I'm going to have to tap out after this."
 
"I uh... never really felt that way before," Finn explained to her, feeling confused yet also excited, in ways that he never experienced before. He twitched when he heard Morgan's soft whisper from his ear before she slipped his hand under his pants. Before he could say anything, he groaned n pleasure when she gripped his cock. While he knew a bit about reproduction from Pricness Bubbelgum, he still didn't lnow much since he was the only human. He kept meaning to ask Diego, but he kept forgetting.

"Yeah, that makes sense. We can just cuddle afterwards," Diego told her between his groans and grunts as he was going at his pace with her. He leans in for another tongue kiss, lett his tongue caress her teeth. "I belong to you," he told her lovingly.
 
"Well clearly you've never been with the right person," Morgan whisper, "but you clearly think I'm hot and I'm gonna show you things you didn't even know about." She used her free hand to take Finn's hat off and move his hair out of the way before she gently kissed his neck.

"I hope so since I have your baby in me," Marceline joked. She reached down and began rubbing her clit to increase her pleasure.
 
Each one of Morgan's honeyed words struck Finn at his core in a way he never thought possible. He shivered once more in delight, yet he did not know why. He groaned softly when she kissed his neck after she removed his hat. Despite this, he let her do it. Finn trusted Morgan. "Like whaT?" he couldn't help but softly ask.

"Well, maybe even more," Diego couldn't help but joke back with his own shy smile. He saw what she was doing and so move his hand to tease and squeeze Marceline's clit while he was going at his slow deep pace.
 
"You'll see." Morgan said. She again was using her free hand, at first to feel Finn's stomach muscles which was something she had never experienced seeing as how her only previous partner was a woman, and next to guide Finn to his bed.

"Gob I hope not. One kid is gonna be hard enough, we don't need more." Marceline responded before moaning loudly when she felt Diego start teasing her clit.
 
Finn remained mesmerized by Morgan's actions. He blushed when he felt her soft hand caress his stomach muscles before to guide them to the bed. "Do you need me to do anything?" he asked her while he was becoming lost in the moment.

"I-I'm gonna cum soon," Diego told her as he kept teasing her clit while he was maintaining his pace. "I love you so freakin much," Diego told her. He wanted to tell her, over and over again.
 
"Just do what comes naturally to you." Morgan stated as she pushed Finn onto the bed, climbing on top of him. She pressed her naked body against his clothes one and kissed deeply on the lips.

Marceline grabbed the bedsheets as her body tensed with an orgasm. She soon relaxed her body panting softly before moaning again. "Keep going." She said. "Keep fucking me."
 
Finn just stared in awe when he saw Morgan's nude body. It was the first time he truly saw a nude woman before and the whole thing was wonderous and New for him. He began to kiss her back before he wrapped his arms around her, even lightly caressing her while he did so.

Diego kept going as he wrapped his arms around Marceline. "You sure? Don't want to hurt you or then baby," Diego asked her as he went at the slow and steady pace while he held Marceline, kissing her softly.
 
Morgan smirked seeing Finn's reaction to seeing her naked, it was definitely a confidence boost. Her smirk only grew as she felt Finn's cock getting harder, although she did wonder if he could figure out what to do with it on his own.

"Yes, we'll stop after you cum." Marceline moaned. "The baby and I will be fine." She kissed Diego back wrapping her arms around his neck and holding him as tight as her belly would allow.
 
"Should... Should I get naked too?" Finn asked Morgan after a long kiss finished between them while he was holding her. Her wanting smirk reminded him of Marceline, especially whenever she was looking at Diego. He was still unsure of what to do, but his instinct was slowly taking over.

Diego nodded as he kept going on his pace. He held her tight and savored their beautiful bond. "I'm gonna cum soon. You want me to cum inside once more... or you wanna have some to eat?" Diego asked her with a smile.
 
"Wait." Morgan said as she got off of Finn. "Okay you can now." She was intently watching biting her bottom lip in anticipation.

Marceline smirked as Diego gave her the option of where he should release his seed. "While it's been awhile since I tasted your cum, so I'll get an order of that!"
 
Finn scooted back a bit before he got up. Normally, he would've felt nervous of stripping around any girls, especially pretty ones that he were drawn with. However, for some reason, he felt at ease. He felt comfortable around her.

Diego smiled before he pulled out of Marceline and pointed his cock at her eager mouth. He groaned her name out loud before he began to cum for Marceline to enjoy. So many fun sessions like that was amazing for him and he savored every oppotunity.
 
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