Vanessa stepped through the streets of Clear Water with noticeable limp. It had been another long day at school, filled with endless bullying. Gym had been the worst, like it always was: the other girls had held her down while they rapidly spanked her ass. Worse still, those jerks had taken a permanent marker and scrawled "fat" on her left cheek and "ass" on the other.
Which, to be fair, was absolutely true. Though overall a skinny woman, Vanessa had a distinctly large ass. It seemed that any weight she gained went directly to her posterior. It looked as if she had a pair of cantaloupes stuffed in her pants. Because of this it wasn't uncommon for boys in her class to steal a glance at her backside. Which invariable made the other girls upset, hence the bullying.
It didn't take long for the sore girl to arrive back home. As per usual, her parents' cars weren't in the driveway. It was just her and her little brother Jason. Or so she thought. She wasn't aware of your presence, the dark god that had been stalking and analyzing her for the past few minutes. Your prey entered through her front door and immediately stripped off her jeans, exposing her thong-covered, red-and-swollen ass.
"Jason, I'm back!" Vanessa taunted. "It as kinda hot today, so I'm going to need one of your famous clean-ups".
The clean-up, you found out, involved Vanessa forcing her little brother to lick her sweat off her body. Her ass was the usual target, considering its size and all. She found her little brother in the living room, cowering on the couch.
"Come on, dweeb. You're 16 years old. Act like an adult," she whined as she turned her ass towards him. "Now get licking or else I'll have to punish you for real. Don't make me do that again, please?"
Her go to punishment was to savagely kick him in the crotch and despite what she had just said she actually enjoyed it quite a bit. Jason himself was no match for her; the five foot tall boy was scrawny to the point that Vanessa probably could have crushed him with her ass alone.
Following his sister's commands, he approach her bulbous behind and place his tongue on it. The slapping from earlier had made it even larger than usual. He dragged his saliva-drenched appendage up her right cheek, savoring the saltiness. Vanessa giggled. Not at the tickling of her behind, but at her brother's suffering.
Neither noticed as you readied yourself to cause some chaos. However, you did not know who to mess with. Though not one to promote justice, you feel that punishing Vanessa in a way that allowed Jason some revenge could be fun. Likewise, you could mess with Jason in some way and make Vanessa's torment even worse. Finally, you also consider that you could mess with both of them.
Thinking it over, you decide to...