Mark, a 19-year-old college student, was chilling in the living room after a long day of classes when his 21-year-old stepsister, Lily, entered the room wearing nothing but a sheer bathrobe. She'd taken a shower after working out and her body glistened with sweat. Her large breasts were barely contained under the thin material of her robe, and every time she moved, they jiggled seductively.
"Oh, I didn't realize you were here," she said, feigning innocence as she approached him. "I wasn't trying to catch you by surprise or anything."
Mark couldn't believe his luck. He'd always had a thing for Lily, but she'd always been out of his league. Now that they were living together, he couldn't help but fantasize about her.
