ieatsmiledip here! Sorry this chapter took so long, my life has been hell the last few months. Expect the next part within a week or two, it'll be pretty short but hey, something is something right? Thanks for reading!

"Are you sure about this?" Dipper asked.

"Of course, DipDip. I love you."

Dipper smiled. He got off of Mabel and pulled his shirt off, while Mabel also began to undress. She unbuckled her bra and cast it aside, giving Dipper full view of her breasts. Dipper was now in only his underwear, his erection creating a tent in his boxers.

Mabel blushed. "Do you like them?"

Dipper smiled. "I like everything about you."

Mabel giggled and reached over. With a swish she pulled down Dipper's boxers. His erection sprung free, suprising Mabel with it's length. Her surprise, however, faded quickly. She kneeled down and grabbed his shaft, gently stroking it. Dipper moaned at her gentle touch.

She leaned forwards and took him into her mouth, rolling his head with her tongue. She took him deeper, and his six incher brushed the back of her throat. She began to gag, but managed to hold it back.

Dipper looked down at Mabel. "Where'd you learn to give head so well? I thought you were a virgin," he said, smirking a little.

Mabel rolled her eyes. "I don't tell you everything I do."

Even though Mabel had never actually gone farther than a blowjob, she loved feeling experienced in front of Dipper. She pushed Dipper over until he was laying down on one of the discarded sleeping bags. She clambered forwards and pushed Dipper's penis against the entrance to her vagina. She pinned down Dipper's arms and kissed him lightly, looking right into his eyes.

"I hope your 'Dipstick' fits, Dipper," Mabel said in her best "sexy knockout" voice.

"Why thank you madáme Mabel," Dipper replied in an equally ridiculous French accent.

Mabel rolled her eyes and lowered her right arm until she wrapped her hand around Dipper's throbbing erection. She gave out a slight shiver and moan as she lowered herself onto it, her dripping wet vagina stretching around Dipper's six inch penis. She felt a brief flash of pain as her hymen broke, but it didn't bleed. Mabel was relieved, as she didn't want her brother to think that she was still a virgin. Dipper moaned as Mabel managed to take all of him inside of her.

"I love you Dipper."

"I love you too Mabel."

Mabel began to rock quicker and quicker on Dipper's 'dipstick'. She started to feel herself reaching the edge of pure pleasure. Her rocking and bouncing became sloppier, her breath more ragged. She stopped moving and shuddered, waves of ecstasy racing through her body. Dipper just lay on the sleeping bag, panting. As Mabel bounced one final time on Dipper, he moaned and came deep inside of Mabel.

Is that what sex feels like? I should have started years earlier! Mabel thought, her face flushed. She pulled herself forwards and watched as Dipper's now flaccid penis slid out of her, followed by what looked like a gallon of semen.

She layed down next to Dipper, snuggling up against his warm body. They looked into eachother's eyes peacefully. Both of the twins began to drift off to sleep.

"Oh my god!" Dipper whispered yelled, waking up Mabel.

"What is it?" she asked.

"I didn't wear a condom!"

"Don't worry, I'm on my birth control pill."

Dipper smiled, at peace. Mabel giggled softly, and the twins drifted off to sleep.