I watched an educational video the other day and this is the product of that.

Enjoy! Reviews are nice, and I own nothing.

Eric was gasping for breath. His eyes were closed and he licked his lips. He had just finished having his fourth orgasm, and he was considering just calling it a night.

Butters was sitting next to him, pushing hair out of Eric's face.

"Are you feeling relaxed?"

Cartman nodded, a smile on his lips, his eyes glazed over. Butters kissed his cheek before reaching for a pair of latex gloves and pulling them on. He bought a new bottle of lube just for this occasion and squirted a heavy dose onto his hand.

"Do you want to rest a bit more or should I start?"

"Start, but go slow," Cartman answered, still feeling a bit winded.

"Of course," Butters said. He put some lube on Eric's anus and started messaging him there. Two fingers slipped in easily, but Cartman didn't react much to it. "Can I put a third finger in?"

"Yes."

Butters slipped another finger in, and Eric grunted at that.

"You tell me when I can put the fourth," Butters told him.

He wiggled around the three fingers inside of Cartman and soon he moaned, "Okay."

The fourth finger went in. Butters was pretty surprised at how smoothly everything was going. He didn't feel like he was stretching Eric a dangerous amount.

"Can you pour on some more lube and then keep going," Cartman said, his voice husky from the effort.

Butters did as he was told. Half the bottle of lube was now gone and his knuckles were just grazing the outside.

"Eric, the biggest part is going to go in next. Make sure you keep breathing and stay relaxed," Butters said, kissing Cartman's knee. "Tell me when."

"Do it," Cartman told him. He gasped when Butters was all the way in. "Okay, okay, don't move!"

Butters stopped. He managed to turn his hand into a fist inside of Eric and was just watching him.

Butters had brought a porno over to Eric's house last week. They hadn't really been watching it, it was mostly background for their own sexual exploits. Cartman had been on top of Butters, thrusting into him, when he stopped to look at what was happening in the video. One of the men was being fisted by the other, and Eric was mesmerized by it. Butters tilted his head back so he could see the screen, and then turned back to Eric.

"Do you wanna try that?" Butters had asked him, pointing at the screen.

Cartman blinked and remembered what was going on. He blushed. "No, of course not."

"It's okay if you do. We can try it."

Eric went back to thrusting into Butters, embarrassed. When they were done, they talked and he confessed he was curious, but it also seemed a little scary. Butters looked up all the information he could about this so he wouldn't wind up hurting Eric, and three days ago they began working their way up to tonight.

Eric was taking deep breaths and Butters was caressing his thigh with his free hand, and kissed his knee.

"How does it feel? Are you getting use to it?" Butters asked.

Cartman nodded. "It feels really good. Like I'm really full. Just give me another minute."

"Take as long as you need," Butters told him, moving his hand down and gently rubbing Eric's dick with it.

"Try moving it around a little," Cartman said.

Butters moved his fist side to side, which caused Eric to groan. He stopped that and then began to flick his wrist and move his fist up and down.

"Yeah! Keep doing it like that! I can feel your knuckles rubbing against it!" Some drool came out Eric's mouth and his toes curled, Butters figured he meant his prostate. "Can you move it in and out a little?"

That request was a bit tricky, but Butters wiggled his arm in a small, hand-pump motion. Eric's legs started trembling.

"Fuck! … Yeah, like that… Oh God Butters…Ah…" Eric's moans turned into giggles and Butters was glad he wasn't messing this up.

While he continued moving his fist, he started jerking off Cartman.

Eric started writhing, and he two knuckles in his mouth and bit hard on them to keep from screaming. "God, Butters!" He gasped. "So fucking good… Can you go back to flicking your wrist?"

Butters did as he was told and didn't stop his hand job. He actually leaned down and licked at the head.

"Butters! … Ah-ow…" Eric had lifted his hips suddenly, but with Butters all the way inside him, it hurt and he collapsed down on the bed again.

"Are you okay?" Butters asked, no longer moving inside him and placing his free hand on top of Cartman's belly.

Eric nodded. "Yeah, sorry. I guess I shouldn't move so fast without telling you first. I wanna lift my hips up, though."

"Okay." Butters rubbed his stomach. He looked around and reached for the discarded comforter, which was thankfully just arms length away. "I'll put this under you so you don't have to strain too much.

Slowly, Cartman raised his hips so Butters could follow him, and Butters stuffed the blanket under his back.

"Okay, can you go back to doing what you were doing," Eric said, twirling his finger towards his lower parts.

Butters continued, and he could see Eric biting down hard on the pad of his palm. "Is everything okay?"

"Everything is amazing… Ah… I just… Don't wanna cum too soon."

"Oh. Well, don't strain yourself either." Butters was going more gentle now, hoping that would help. It had crossed his mind to bring a cock ring, but those things frighten him, the idea of having your penis swell up and not being able to cum when you want, it was a turn off for the blond. And he figured if he was afraid of a sex toy, Eric would never want to use it, so what's the point?

"Go faster again," Cartman said, his hands on his chest.

Butters flicked his wrist as quickly as he could and he lapped at the precum dripping from Eric.

"Ah. Ah. AH… AH!" Cartman gasped. He lifted his legs until he was on his tiptoes and he came.

Butters watched Eric as he fell back on the bed, completely undone and spent. He pulled the comforter from underneath him so Eric was actually lying on the bed now instead of awkwardly having his stomach jutting out. He rubbed Cartman's thigh and leaned forward to lick clean the brunette's stomach and penis.

"That was… The most intense orgasm I have ever had in my life…" Eric managed to say.

"Yeah, I could tell," Butters teased. He was smiling, proud of himself for doing this correctly. "But it's not over yet, I have to pull out now. So don't go to sleep just yet, love." He rubbed and patted Eric's stomach when he saw him drifting off.

"Try to take it out now," Cartman mumbled, more asleep than awake.

Butters tried to slide his hand out slowly, but he stopped when he hear Eric gasp.

"Wait!... Ah… Aah… Wait there for a bit," Eric said, more awake now. He was sighing and moaning and even though he still needed to recover, he felt like he was going to cum again just from this.

Butters waited, and he was looking down on Eric, amazed that his boyfriend was actually able to take him all in.

"Okay, go for it," Cartman said.

Butters knuckles came out, followed by each finger until only his pointer finger was left. There was a lot of room now, but even now he could see Eric tightening back up. In a few hours he'll be completely recovered again.

Butters moved his last finger in circles inside Eric, gently caressing his insides. Soon that was out too, and he removed the glove from his hand and tossed it in the trash. He sat on the edge of the bed next to Cartman and stroked his face.

"So how was that?" Butters whispered.

Eric whimpered and curled towards Butters. "I feel empty now, lie down next to me."

Butters lied down and pulled the comforter over them. Eric cuddled into his chest, exhausted. Butters ran his fingers through his hair and rubbed his back.

"Thanks," Cartman said, dozing off again.

"There's nothing to thank." Butters kissed his forehead.

"Tomorrow is all about you, okay? I'll make you cum a hundred times."

Butters giggled. "I'm pretty sure that'll kill me, but that sounds like an awesome way to go."

Cartman smiled, his eyes still closed. Soon he was snoring softly and Butters hummed a little to himself, happy and content that he could make Eric sleep this peacefully.