Pikachu x Misty x Ash
Ash and Misty fuck while Pikachu is inside Misty's vagina.
Misty was sound asleep in her sleeping bag when Ash's Pikachu came into her tent. He was poking around in there looking for a late night snack. He looked at Misty knowing she was a deep sleeper. He then wiggled off her shorts and suspenders. She moved slightly and then wedged her hips forward. This gave pikachu an idea.
He then pushed aside her panties and slowly inserted his cock into her vagina. He left it there for a couple seconds and then thrust in and out multiple times.
He got near his climax and pushed as deep as he could and released his load into Misty. She moaned in her sleep and wriggled slightly but didn't wake up. The pikachu realized he could take it farther.
He licked up all of the cum that was dripping out and inserted his actual head into her pussy. It was a tight squeeze and he realized that this was a bad idea. He wiggled and wiggled but he couldn't get his head out!
Then Misty's body moved and and squished her legs together. This made his shoulders go in as well. He kept moving and wiggling trying to get out but it was no use! She then bucked her hips multipled times in her sleep to get that pleasure she needed.
The only thing remaining of the pikachu were his waist down and he just kept sliding in. She bucked her hips one more time and there were two little feet dangling outside her vag lips.
Meanwhile, Ash had woken up from a wet dream about Misty and figured tonight was the night to fuck her. He took a piss and then headed off for her tent.
With pikachu all it took was one more struggle and he was completely inside her womb. She came from the pleasure as he moved and kicked around inside her stomach.
Ash had arrived to Misty's tent and seen her with a bulging belly. He saw her shorts pulled down and cum on the sleeping bag. He grinned and whipped out his cock.
He lined it up perfectly and first go it went all the way in. Misty had finally woken up to see her stomach as big as a pikachu and Ash with his dick in her. She immediately kissed Ash and started riding his dick. Little did she know, Ash's dick was long enough to enter her poor womb and fuck Pikachu in the ass!
Pikachu was blown away by the pleasure and came again for the second time that night. After several minutes they all came in unison. Misty passed out on Ash's cock and Pikachu curled up in Misty's womb. Ash was proud of his work and headed back to his tent for the night.