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It's Just Human Nature (MysteriousD/DaddysLittleSkank)

"Ew, look at you being all flirty." Morgan said while kissing Finn. She grabbed the band of Finn's shorts and underwear before sliding them down. She got them around his ankles and focused her attention on stroking his manhood.

"I better be, you're kinda the reason I look like this." Marceline said teasingly. She wrapped her arms around Diego's neck and kissed him passionately.
 
Finn groaned when he felt her soft hands grab the rest of his clothes and slid them off. He mvoed so she could better get them off of him before leaning in to kiss her some more. He goraned softly when she began stroking him and he responded by strting to grind against her.

Diego happily returns the paassionate kiss as he softly embraced his future wife. His hands freely explored her body, caressing her as he went underneath her clothing to squeeze and grope her. "How badly does my Queen want it?" he asked her with a smile.
 
Morgan eagerly kissed Finn back. She moved her hand to around his torso as he started grinding against her opening. She was already wet in anticipation of what was to come.

"I want it so bad." Marceline said as she reached down and pulled off her shirt. While kissing him she managed to pull off her boots and socks, leaving her only in her bra, pants, and panties.
 
"You ready for your last birthday gift?" Finn couldn't help but tell her with a flirty smile before leaning in to kiss her neck as he was growing harder from the wonderful sensations they were feeling together.

Diego pulled off his shrit and he already removed his shoes back when he entered the house so he was only in his pants. While he wanted it badly too, he wanted to savor every moment of the exchange with her. He undid her bra before he began to softly squeeze and play with Marceline's breasts, larger thanks to her pregnancy, all while leaning in to kiss her neck.
 
"You know I am!" Morgan said with a smirk. "I'm always ready for you."

Marceline happily watched Diego take his clothes off. "What? I don't get a full show?" She asked teasingly. "I was enjoying watching you strip."
 
Finn groaned softly when he stopped grinding and finally went inside of Morgan. No matter how many times they did it, it still felt amazing. "This is so freakin good," Finn said as he held Morgan tighter, savoring their warm embrace. "happy birthday," he told her with a loving smile and tone.

"Well, only for you, sweetie," Diego told her with a smile before he removed his pants and underwear, leaving him with his erect cock before going over and removing her pants and udnerwear too, leaving them in the nude. "Should we play a bit or do you wanna go for the main event?" he asked her, getting lost in her eyes.
 
"I love you." Morgan said looking up at Finn as she said those three words for the first time ever.

Marceline watched Diego intensely before teasing, "I'd make it rain but I don't have any cash." Marceline purses her and spread her legs again hinting that she wanted him to do oral on her.
 
Finn smiled sweetly before he leaned in to kiss her softly. "That was the first time you told em that," Finn told her with a smile. "I love you too," he told her before he began movingly slowly and focusing on the connection ebtween the two.

Diego smiled before he went forward and began to slowly lick Marceline's maidenhood and focused on teasing and pleasuring her. His tongue explored inside and out, all to drive Marcy crazy with pleasure.
 
"I know and I meant it." Morgan said as she continued to hold Finn. "You're one of the most amazing people I ever met and I can't believe you're even interested in me."

Marceline let out a loud, long moan when she felt Diego's tongue on her. "Oh yes!" She moaned resting a hand on the top of his head.
 
"And you're one ofthe most amazing people as well. You kick alot of butt and you're super nice," Finn responded bacl to her with a smile while he maintained his slow and steady pace with her.

"Does my Queen approve?" Diego asked her teasingly as he went to lick her faster and harder before focusing on her clit while beginning to finger her.
 
Morgan smiled at being complimented. She was unbelievably happy, feeling as though she'd finally found a place where she could fit in and be herself.

Marceline counted to moan, enjoying herself more than usual probably due to increased sensitivity. "Hell yeah I do!" She moaned. "You're getting good at this!"
 
Finn decided to go a bit faster at the pace, to go and indulge more in both of the pleasure they both so dearly craved. "I love you and we call care about you, always remember that," Finn whispered in her ear lovingly.

"And I wonder how good you've gotten yourself," Diego couldn't help but tease. Marceline brought out his mroe passionate and wanting side, but he still liked it when she took the lead and control. So he began to lick her deeper while fingering her faster.
 
"I will." Morgan said smiling before kissing Finn and also giving into her desires. She slowly began moving her hips along with Finn's thrusting.

"You'll just have to wait and find out." Marceline teased while still moaning. She felt her climax quickly approaching. "Keep going!"
 
Finn began moving a bit faster when Morgan began moving herself, especially to keep up with Finn's pace. "Oh Gob... this is soo good," Finn groaned out before he went and gave Morgan another warm tongue kiss.

Marceline's sweet moans were enough for Diego to go faster and deeper in licking and pleasuring her. He began fingering her with two fingers while sucking on her clit.
 
Morgan moaned as she stopped moving. She quickly grabbed the sheets as her body tensed under Finn. She let out a loud moan indicating she was climaxing.

Marceline grabbed a fistful of Diego hair and pulled it a bit as she cam. "Oh my Glob." She said as her other hand gripped the edge of the bed.
 
Finn reacted by holding onto Morgan, his grip tightening around her as he groane din pleasure. He felt her walls squeeze him when she came. "I'm gonna burst soon," he manage to say, wondering where Morgan would want him ti cum.

Diego opened his mouth and eagerly accepted her juices. He took a deeo breath before he stood up and presented his erect manhood to Marceline's face. "Your turn, sweetie. I know its your fave,' he said with a smile
 
"Do it!" Morgan said growing more excited by the thought of Finn filling her up with his cum. "Fill me up!"

Marceline chuckled, and sarcastically said, "if I have to!" Her tongue came out of her mouth and wrapped around Diego's dick.
 
Finn groaned in pleasure at Morgan's encouragement before he filled Morgan up with his cum, all while he held close to him. The sensation overwhelmed him and his vision went white as Morgan was filled up with his seed.

Diego groaned in pleasure and he went in the knees. Marceline's long tongue skillfully wrapped around his cock. "You're so damn good at this," Diego groaned out in pleasure with a lustful look on his face.
 
Morgan slowly came down from her high, panting softly. She kissed him and said, "you're the best!"

Marceline slowly lowered her mouth onto Diego's dick before bobbing her head up and down while continuing to stroke it with her tongue.
 
Finn was breathing deeply as well, trappe din the same sort of high that Morgan was in. He lovingly kissed her back while hugging her. "And you're even better. I love you so much," he told her with a smile.

"Oh Glob that's amazing," Diego moaned as he felt Marceline suck him off hard while stroking it with her tongue so intensely.
 
"I am pretty great." Morgan said with a smirk as she was coming down from her orgasm.

Marceline reached and gently began massaging his balls with one in each hand. It was weird for her to think that she wasn't sucking off her boyfriend anymore but her fiancé.
 
"We both are," Finn said while chuckling before he went over to kiss her once more while he just hugged her. Hugged her tight. "Happy birthday, Morgan. I love you so mcuh," he told her with a big smile.

"Ooooh, I'm gonna cum soon," Diego groaned out when he felt Marceline's soft hands gently massaging his balls. "You're the best," he said with a very pleasured on his face.
 
Morgan kissed Finn and cuddled up close to him.

Marceline smirked as she started trying even harder to make Diego cum. She had an idea to try something new. She stopped massaging his balls and reached an arm between his legs before beginning to massage his prostate.
 
"How you feeling?" Finn asked Morgan as he cuddled up against her as well before kissing her.

Diego blushed when he felt Marceline massage his prostate and the strange and foreign feelings sent such a shock through his spine that it caused to reach his limit. "I'm gonna cum," he groaned out loud before he ended up cumming inside of Marceline's mouth
 
"Shh..." Morgan put her index finger over her mouth with her eyes closed.

Marceline swallowed the cum. "Did you like it?" She asked sitting on the bed again.
 
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