Inktober #03 - Vessel (Patreon)

The three girls were sitting on the bed in their pajamas. They had passed their end-of-semester exams and were having a sleepover to celebrate.

“I think I should have brought warmer pajamas. I'm freezing to death,” said Rhonda, a futa in a cute babydoll.

"I agree. I think it was a bad night for a pajama party,” said Tracy, a Normie girl who was barely wearing panties and sports bra.

“How about this?” Penny, the rubber girl said.” How about we have the sleepover in a much warmer place.”

Penny’s friends stared at her in disbelief. They knew that Penny was fairly extreme as far as mutants go but… this?

Of course, Rhonda wasn’t one to turn down a dare. After thinking about it for a few seconds, she threw herself headfirst into Penny's vagina. It expanded to obscene sizes as she entered, making Penny moan with pleasure.

When Rhonda's feet were the only thing outside of Penny, Tracy sneaked up behind her friend and forcefully pushed her body through her a_nus. Penny cried out in surprise as Tracy forced herself in, aided by Rhonda from inside. Soon, both girls were completely enveloped by Penny’s flesh. Penny was practically a container for her friends, a human sleeping bag. 

"Girls, everything okay in there?" she asked.

"More than good, I'd say," Rhonda laughed. Suddenly Penny began to feel a continuous movement inside her. She craned her neck to get a better look and saw the girls stir inside her. She could hear loud moans coming from inside herself.

"HEY! Stop having sex inside me! ”Penny exclaimed angrily.

"I-I'm sorry but is so hot insid- OHMYGOD," Tracy managed to say, reaching an orga_sm.

Penny, somewhat indignant, lengthened her neck and pressed her head hard against her vagina lips, entering her own body to participate in the improvised org_y. That was a girls night to remember.