Yuzu

Description

Butt fetish, big butt, see-through panties, butt-toning workouts, cowgirl position, sisters as sexual objects, ○○○○○○, no-questions-asked quickie. My sister, who’s obsessed with her figure, is easily influenced by TV and social media. She jumps right into any trendy workout or diet that’s trending, but she always gives up after three days… As usual, she’s putting on a show of being health-conscious, and today she’s enthusiastically working out with a new routine she just learned. "She'll just get bored of it soon anyway..." I thought, glancing at her out of the corner of my eye with no real interest—only to be met by my sister's huge butt, which had grown into a nice shape without me even noticing!! Once I noticed it, there was no turning back... my quick glance turned into a full-on stare... and before I knew it, my hand reached out...