Finn was mustering quite a bit just to open his eyes. His muscles were sore and stiff, his stomach felt punctured, and he was getting through one of the worst headaches of his life. He was experiencing his very first hangover. It was torture on him, which is really saying something given the stuff he deals with . If he'd known overdosing would do this to him, he wouldn't of had so many drinks. He had to have a girlfriend who loves this stuff, figures. After fighting monsters, demons, stopping wars, saving the planet, and defeating his symbol of death more than once, it was a sexy naked vampire and half a bottle of strong wine that brought him to his knees. And speaking of which, he barely craned his neck over to see Marcy was naked and still asleep, probably about to feel as much like broken heated glass as he would. Finn just wanted to lay in bed until the pain went away. It was like every second his thoughts were pulsing his brain, every muscle felt like it was about to snap off, his stomach ready to rupture and decay from inside him. He better understood now than ever what it felt like to be punched and stabbed by himself like his many foes have. Finn suddenly had to pee, and debated with himself long and hard as to whether or not he wanted to get up. He finally decided to as wetting the bed would just be gross. Trying to get up felt as easy as bending glass without breaking it. He felt every nerve in his head slosh and bang against his skull. He moved slowly as possible to keep his headache from worsening. After what felt like an hour, Finn finally reached the toilet. He couldn't muster the power to bend down and lift up the seat so he just aimed carefully and shot. The simple task of standing still to pee felt like agony on his sore pelvis. He knew Marcy was strong, but this was just absurd. He finally finished up and made sure not to hit the seat. He walked slowly to the sink and washed his hands before walking back to the bed. He laid himself down carefully and rested on the pillow. Marcy looked relatively peaceful, but was gonna feel like the nightosphere when she woke up if Finn was any indication. He rested his head and tried to drift back to sleep. Darkness surrounded him as he suddenly was surrounded by limestone. He saw a blue eyed shadow figure wall up.

"The bell will cleanse the spirit, the moonlight shines the way for those who need it."

Finn then felt the floor become water and washed him away to the end of a light. Finn then woke up, feeling slightly better but still woozy. He looked over and Marcy was still asleep. He looked at the clock on the wall and saw he was asleep for about 5 hours. He slowly lifted up, too sore to even reach for his clothes and tried to climb down the ladder as carefully as he could. He just barely made it to the kitchen before he felt his stomach twist and threw up in the sink. He felt around before turning the sink on and letting his puke drain away. Finn slid down to his knees as he kept puking. His throat burned from the stomach acid he hurled up. He finally finished after his stomach was halfway up his chest. He trudged up and managed to grab some aspirin. He took 2-3 pills and filled down some fresh water. He held still, making sure not to vomit again. He eased his way up to Marcy's room(stupid ladder) and settled back down, this time pulling the blanket up over them and going back to sleep.

Finn was now suddenly in the limestone cave again, a massive door in front of them. It showed a naked man and woman hugging

"Only true passion will bring the end of mindless lust"

Finn suddenly woke up to a screaming Marceline. Granted he felt a lot better(still stuff and numb in many places) but Marceline sounded far worse than he did 7 hours ago. She was gripping her gut, black vapor coming out her mouth and nose.

"Oh my glob, Marcy!" Finn said

"Ahhh, it's coming." Marceline said

A giant screaming cloud resembling a misshapen face ripped out of Marcy and evaporated into thin air. Marcy then gripped her head as her hangover was settling in.

"Oh grob, I drank too much." Marcy said

Finn was still in total shock at that "thing" coming out of her breathing tubes, even if she seemed relatively unfazed by it.

"What the, I've been asleep all day?!" Marcy asked Finn in confusion

"What was that freaking cloud thing?" Finn asked, still horrified

"That was just demon remnant, nothing to worry about, ahhhhh my head." Marceline said as she rubbed the sides of her head

Finn was still a little uncomfortable about it, especially with his weird dreams. He's been through enough to know his dreams aren't just dreams anymore. Marcy floated up and flew down, probably to get some aspirin like Finn got a few hours back. Finn was still worried and followed her, despite his aches and queasy feeling. He just made it down when he saw Marceline on the floor squirming, several of those misshapen demons pooling out of her. She was cradling like a toddler as the last ones evaporated. Finn ran over and turned her towards him. She was panting and drooling, barely looking up at Finn.

"Finn, this is serious now." Marcy said as she floated up and grabbed some aspirin at last.

"Should we call Dr.princess, or maybe peppermint butler?" Finn suggested

"No Finn, this is a problem for the netherworld." Marceline said as she took about 4 pills

"Say what girl?" Finn asked

"It's because I'm half demon and filled with vampire souls, this only happens to my dad when he sucks up duets of souls in love, but I think the same effect occurs because we had such hard sex or "love making" like a bunch of cheap poets say it." Marceline explained

"So your puking up smoke when your in love?" Finn said , still confused

"Kinda, demons can't experience love to this degree as it rots their insides, but since I have other souls I thought I could handle it, but I think the wine just made me more affected." Marcy said as she coughed up a black smoke ball

"So our diddling is rotting your body away?" Finn asked

"It's rotting the souls in my body, if we don't fix this then my powers will fade along with my soul." Marcy said as she grabbed a book from under her couch

"Then we gotta move, I'll get my sword." Finn said as he hopped up for his stuff

"You do that, let my find the right, aha, here we go." Marcy said as she found the page she needed

Finn came down with his sword and underwear on, Marcy looked over while he was putting g on his pants and floated over.

"No no, keep your clothes off." Marcy said as she stopped Finn from putting on his shirt

"Wait wha?" Finn asked

"Netherworld beings have an issue with nudity, they think anyone naked might be one, it'll keep them out of our way so we can get to where we need to fast." Marceline said

"Oh, ohhh." Finn said blushing

"What, Mr. adventurer never went streaking before?" Marceline said smooshing her cheeks together

"I have, just not with a girl." Finn said as his blushed deepened

"Pfff, don't be a lemon Finn, it'll be fun." Marcy said as she coughed up some more soul smoke

Finn grabbed some water bottles and the aspirin just in case. Their hangovers were still making them suffer so it's better to be safe then sorry. Marcy set the book down on the page and it glowed purple

"And between you and me, I go streaking all the time while invisible." Marcy said as she hugged Finn

Finn blushed as the page sucked them in. Finn felt like he was being scrambled into powder and sucked through a straw. If he wasn't with Marcy right now, he'd like all over the wherever they were. He suddenly felt solid ground again as he rematerialized into place. Both fell over and groaned over their aching heads.

"Ahhhhh, I forgot how much hangovers blow." Marceline said as she trudged to get up and coughed some smoke soul

Finn took a minute before letting the netherworld sink in. It was a land full of black smoke skies, gas masked looking skeletons and monsters, and a colorful flame in the far distance. The ground beneath him felt like wet sand, and the essence of mayhem filled the air. A group of those weird demons were surrounding them, looking like they were clinging to the walls and dead trees around them. Finn held out his elemental sword, ready to strike. Marcy grabbed his arm and changed the fire setting to a candle glow. The monsters hissed as the glow illuminated their naked bodies. Marceline started jumping up and down, her breasts jiggling up and down. She nudged Finn to jump too, and Finn complied despite his embarrassment. The creatures looked on in horror at their bouncing parts

"Uncovered skin, harpies!" One shrieked

"HARPIES, fall back, fall back." Another monster hissed

They all scurried away from them like rats, leaving them alone in the weird realm.

"See, these guys hate harpies, so as long as we're naked it's smooth sailing." Marcy said as she looked at a map she brought

"So what if we run into any actual harpies?" Finn asked as he adjusted the glow on his sword

"Harpies are dumb, they think as long as your nude your one of them." Marcy explained

"How does that work?" Finn asked

"They base their tracking by sound and movement, of its hindered in a way only cloth can, they know your not own of them, like these idiots could figure that out." Marcy said as she took some aspirin and water

The two spent about an hour walking, occasionally running into a monster that ran from them. Finn was taking notice of how parallel the netherworld was to the nightosphere. It was more calm and cold where the nightosphere was chaotic and insane. It was more unsettling but not as dangerous. The two finally arrived At that rainbow flame, it's swirling g colors matched with its comforting warmth. Suddenly, 4 instruments had risen above it along with a text.

"The hand will feel pain and scorch, tonight the music plays a key as the torch, the proper tool will command if right, your journey relies on the glow of which night."

"Uhhhhh I forgot about this stupid riddle." Marcy said as she sneezed out more soul smoke

"We gotta get the right instrument, but which is it." Finn said as he looked at them

There laid a guitar, a caroling bell, a trumpet, and a recorder. Finn was stumped until he remembered the being in his dream. He thought hard about last week while fighting a flying troll shark. It rose up to strike during a mostly glowing moon. That meant tonight was a full moon. Finn grabbed the bell and the fire chucked some cinders into it, giving them a makeshift torch.

"Nice skills Finn." Marceline said

"Thanks." Finn said blushing a bit

The two continued walking, the torch illuminating a clearer path with less beings and less chilling surroundings. Occasionally a rogue harpie would attack, but Finn froze it and crushed it. He even took out a swarm of pretty stupid harpies with a tornado. Marcy took notice of how that stiffened him up. But this wasn't the time as she was getting sicker by the minute. The fire felt almost like a warm blanket when your first born, resting in your mom's hands. It was nice, almost otherworldly to him. The two then arrived at a shrine where another text appeared.

"The body and soul intertwined, you seek the goblet divine, to remedy the spirit within, you must show passion without sin."

"Well, you got the last one right, what the dingus does this junk mean." Marcy said as she started to cough up more smoke and looked considerably more woozy

"Hmmmmm, I think I got it." Finn said as he laid down next to her

Finn then kissed Marceline, wrapping his arm around her neck. She was getting into it, but stopped as she puked up a patch of grey smoke

"Finn, this is no time for love, my soul is getting rotten now." Marceline said

"No it is, the text said we need passion without sin. We got in this mess because we were both hornet dogs for each other, but through sex out of love can you be cured." Finn explained

"So your saying we need to have sex to cure me." Marceline said as she choked on some soul

"Yah, But out of love and passion." Finn said

"Well, you lead then."Marcy said as she coughed up more gunk

"Okay, this is for you Marcy." Finn said as he inserted himself in

Finn started thrusting, causing Marceline to moan as she started to feel light headed from her lack of soul. Finn was pleasuring her body up and down, making how much he cared for her very clear. Marcy was starting to get drowsy, The sex keeping her awake. Finn was sucking her left breast and feeling up her left leg. Finn was keeping his mind entirely on Marceline and saving her. He was focusing on everything they've been through and how much he meant to her after all this time. Their moans were starting to attract attention, but everyone was still terrified of them that no one drew closer.

"Oh glob, their mating." One creature

"Those harpies are disgusting." Another said

Marceline moaned very loudly, spooking them all away as they thought she would attack. Marceline feel much more care and precision from Finn this time around, almost like he was choosing his movements carefully while banging her. Both were still hurting from their hangovers, but Marcy was mostly incapacitated and Finn was willing to suffer to save her. Finn moved up and kissed her, their bodies tending up as they both climaxed. Both their headaches were screaming with pain, but their attention was driven on Marcy. Her stomach(or rather her womb) was glowing. White steam came out her belly button to form what looked like a newborn infant. The infant giggled before phasing back into Marcy and casing her body to glow. Her ailments were healing and and the Black smoked reformed inside her to their original states. Marcy floated up, smiling at Finn and hugging him.

"So you love me Huh?" Marceline said in her typical tone

"Yah, I do." Finn said blushing and returning the hug

The goblet then filled with a glowing liquid, it's warmth similar to the flame.

"This will get us home, let's go Finn." Marcy said as she drank half of the goblet

Finn drank the other half and the netherworld around them melted away. Finn suddenly get the carpet of Marceline's home again and saw they were back.

"Woof, that was something huh Finn?" Marcy said as she grabbed some fruit punch from her fridge

"Yah, could have used more monster slaying." Finn said

"Well danger is your turn on." Marcy said as she chucked a fire cracker off the top of her fridge at Finn

Finn sliced it with the air strike of his blade. Marcy chucked several more and Finn strikes them all, occasional sparks going off on his shoulder or foot.

"What are you doing?" Finn said with his sword still in hand

"Getting you in the mood." Marcy said as she pointed at his groin

Sure enough, it was half hardened and pointed at Marcy. Finn blushed bright red, so red that Marceline was half tempted to taste him. Instead she pushed him onto her couch and kissed him.

"You were hard the every time you fighting, so I felt some extra peril would get you in the mood, now let's show just how much we love each other." Marceline said as she climbed on top of him and kissed him. Finn complied, feeling both arousal and love in her arms.