“I guess so,” Marcy nodded as she started pulling her rotund body into the tub.
“You should come in with us, Jason,” Darcy added as she helped her sister and went in after her, “How else are you gonna reach us?”
“Ooh! Ooh! Get naked like us!” Marcy cried out. Jason decided that yes, that would be a good idea as he doubted he’d be able to reach them properly from the edge of the tub. Besides that, with their bulk a lot of the water got displaced and sloshed out of the tub, and splashed his clothes. So off came his clothes and into the water he went to clean his gigantic twin sisters. As he did he slipped on the edge and fell onto Marcy’s chest, right between her prepubescent obesity boobs.
“Aww! Big bro!” Marcy cooed, “Did you want to play with my boobies?”
“Gah! No!” Jason squealed as he hastily pushed himself away from the nine year old’s chest. He was suddenly pulled into Darcy’s sweaty baps as he did.
“Well how about mine then?” Darcy asked, looking down at his flustered face.
“Also no!” Jason cried as he pulled himself from her meaty grasp, “Look, I don’t know what you girls are thinking, but I don’t want to... you know... ruin you girls! Also, holy cow! You two are nine years old, and you’re my sisters! That’s just wrong!”
“Oh,” Marcy exclaimed, “That’s right! You’re grossed out by family sex.”
“Sorry big brother,” Darcy apologized, “We forget sometimes that you don’t want to have sex with anyone you’re related to. Or do things like play with our boobs.”
“This... this is a common thing he- I’m not gonna...” Jason spluttered, “Let’s just... get the bath over with so that you girls can go back to rolling around in mud or whatever you were planning on doing today.”
The twins agreed in unison as Jason reached for the nearby bottle of detangling shampoo. He started with Marcy, working on her hair and face as Darcy watched intently. He gently but firmly scrubbed her face, trying to get rid of all the grease. Then came her chest where he tried to work around her sensitive nipples, but he couldn’t completely avoid them, and ended up evoking a few pleasurable moans from his little sister. Darcy giggled each time she did.
“You’re not doing that to her on purpose, are you?” Darcy teased, “Kidding! Kidding!”
After that, Jason started to scrub under her breasts, which came with its own tribulations. As he lifted each up, he was hit with a strong wave of sweaty odor that he hastily tried to wash away. You then moved on to her lower rolls of fat, scrubbing away grease, sweat, and disgusting bits of moldy food. He preferred not to get to her lower regions just yet, dreading when he’d have to clean there, so he turned to wash Darcy’s upper half instead.
“Aww, you didn’t get my butt yet!” Marcy sighed as she watched her brother empty the rest of the shampoo as he worked on her sister’s hair and face. As he scrubbed away at the raven haired girl’s head, she started digging into her nose and pulled out a huge and gooey booger, which she proceeded to eat without a second thought. Jason gagged for a second as he tried to put that disgusting display out of mind. He found similar results to Marcy as he tackled her fat breasts and belly rolls, but when he got to her bellybutton things immediately took a turn. There was something... big and moldy in there, which with disgusted horror he pulled out. It looked like it used to be a peanut butter and jelly sandwich, but now it was overtaken by green and blue mold. Jason nearly blew chunks.
“Oh man! I forgot about that sandwich!” Darcy exclaimed, “I stuck that in there maybe a month ago? Eww, it’s all moldy now! I’m allergic to mold. It gives me the Hershey Squirts.”
“I’ll eat it!” Marcy exclaimed as she wrapped her lips around Jason’s hand. The boy shrieked as he pulled his hand out and his sister happily swallowed the spoiled food, letting out a huge rancid belch. Jason felt like he was going to cry.