Mark and Slender have been dating for a while and the kids are now doing their killing spree while Mark is finish with his. He got blood on his lips and got a bottle of blood in his hand and drank it. The rest came back and they smile at Mark.

"Say Mark, I can't believe that you and Slender dated for a while." Zack said

"Yeah I mean you are so cool with slender. I'm not going to ask you this but.." Dave said

"No no you're not a pervert like those fuckers over there." Mark nodded

Mark pointed to the other guys Puppeteer, Jason, LJ, Candy Pop, Offender, Sully, Jeff and Ben.

"I meant to ask is that, are you going to uhh you know what." Dave asked

"Well of course but I'm nervous. I mean he is 10 feet tall and I'm like oh I don't know 6 feet." Mark said while rubbing his neck

"Well don't worry. Everyone gets nervous here and there when you made love for the first time." Sam said

"Thanks for the advice Michelle." Mark smiled

Mark then went upstairs to Slender's office and he knocked on the door.

"Enter." Slender said

Mark opened the door and Slender sees Mark and he got up and close the door.

"Hey babe." Slender said

"Hey Slender. We have been dating for a while." Mark said

"I know. Well want to have some fun?" Slender purred

Mark shivered at the sound of Slender's voice and he feel nervous. Slender can tell because he read his mind and he whispered in his ear.

"I'll be gentle." Slender whispered huskily

(HERE COMES THE YAOI!!! Get your tissues ready!)

Slender then slammed his lips onto Mark as he kissed back. Mark then hears the sound of ripping of the skin as Slender reveals his mouth. Mark's eyes are widen and Slender uses his tentacles to pull him close and they both kiss again as their tongues are swirling around. Slender then goes on Mark's neck, looking for his sweet spot.

"Ahh.. Ahh." Mark moaned

When Slender find his sweet spot, he begin to abuse it and he then take off Mark's clothes with his tentacles and two of them pinch and squeeze Mark's nubs on his chest as Mark moans more.

"Nyah.. Ahh fuck.." Mark moaned

Slender lick Mark's stomach as Mark moaned more. Outside of the office, the kids are watching tv and that's when they hear the noise and cover their ears. In the office, Slender lick the tip with his tongue and then he put his whole mouth on Mark's member. He bobbed his head up and down while Mark is moaning in pleasure.

"Oh my fucking god ahh." Mark moaned

Slender continue until Mark releases into Slender's mouth. Slender then take off his suit and tie, revealing his abs and muscles as Mark blushed

"Like what you see Mark?" Slender smirked

"Y-Yes.." Mark nodded while blushing

Slender them pick Mark up and place him on the desk. He then unbuckle his pants and remove his boxers and that's Mark's eyes widen at the size. Slender is huge, like 10 inches and Slender read his mind and he knows the problem.

"I'll go easy." Slender said

"I trust you." Mark nodded

That's when Mark feels something slimy into his entrance and he sees a tentacle as another one went in his mouth. He starts sucking the tentacle as another went in his entrance and Mark feels the tentacle going into his throat, causing him to gag and the tentacle release a black substance and Mark swallowed it.

"Ready?" Slender asked

Mark nodded as Slender enters. Pain shots his body as he grits his teeth and Slender then reveals his mouth and begin to kiss him to ignore the pain. Mark then nod for Slender to move as he thrust slowly as Mark feels the pain fading away and it replaced with pleasure.

"F-Faster!! Harder!!" Mark moaned

Slender then went faster as Mark moaned even louder.

"M-Mark.. Tight.." Slender groaned

The desk started shaking a bit as Slender goes even faster and harder.

"Ahh ahh mmh ahh!!" Mark moaned

Outside the office, Offender and Jeff are grinning at the sounds that Mark is making.

"My brother is getting some." Offender smirked

"Yeah." Jeff smirked

In the office, Slender slams harder into Mark as he rammed his G-spot with dead aim.

"M-More!! Right there!! Ooh!!" Mark moaned loudly

Slender then goes in his immortal speed, pounding him so much that the desk begins to shake as books are falling off the shelves.

"YES YES!! FUCK YES SLENDER!!" Mark screamed

Slender groaned in lust as Mark is screaming in pleasure. Their moans can be heard outside of the office and the proxies are having nosebleeds.

"O-Oh m-my *tic*." Toby said

"Hand me a tissue." Masky said

LJ and Puppeteer also grinned at the sounds that Slender and Mark are making.

"Sounds delightful." Puppeteer smirked

"I never thought Slender would have sex." LJ smirked

The sounds of skins slapping, the desk shaking and their moans are filling up the office. Mark's legs wrapped around Slender's waist and he keeps on screaming in pleasure.

"I-I'm close!!" Slender warned

"Me too." Mark nodded

After about 6 more hard slams, Slender released hard into Mark.

"SLENDER!!!!" Mark screamed

"MARK!!!" Slender groaned

Slender then fall on top of Mark as they are both panting in exhaustion as the proxies are gushing out blood from their noses outside. Slender and Mark then make out for a little bit and they both stare.

"I *pant* love you." Mark said

"Love you too." Slender said

(Yaoi over.)

They both them got off the desk, get dressed, clean up and left the office together. LJ, Puppeteer, Jeff and Offender are smirking and went to Mark.

"Had fun with my bro?" Offender chuckled

"As a sexy clown, I can do better." LJ smirked

"Slender went hard on you." Jeff smirked

"You two had fun in there?" Puppeteer smirked

"Eww!!!" Tiffany, Michelle and Rose said

"This is why you guys will never get laid." Hoodie said

"I give up." Bloody Painter said

"Gross guys." Burt, Quinn, Dave, Matt and Sam said

"Fuck you guys." Mark said

"I'm just saying I'm everyone's type." LJ smirked

"More like everyone's nightmare." Shadow Blue said

"Thanks Shadow Blue." Mark said

It is now dinner time and everyone is eating and Slender sat right next to Mark and look at him.

"Maybe you can learn some language like vampire language." Slender said

"Maybe I should I mean I got myself a book that my mom gave me." Mark said

After the dinner, the kids got in their rooms to sleep as Mark is petting Bloody.

"Oh my kitty. I have the best time of my life." Mark smiled

Slender came and Mark looked at him and he used his tentacles to pull Mark and they both kiss again as their tongues are swirling.

"You are my love and nothing will take that." Slender said

"Plus you are still a father figure to us." Mark smiled

"Well I can be both." Slender said

Slender and Mark then got in the bed and fall asleep together