Lexi's clothing...or lack there of

Jack froze, he was drinking in the view of his stepsister. She was always a bit of an exhibitionist, not wearing a bra much because she didn't need to. Neither did her mother, for that matter. Perky tits always capped by up-ward pointing puffy nipples that were constantly swollen, capped with little pebbles of nipples. A stark contrast to her mom's grapefruit-sized tits that still had super suckable nipples that pointed more or less at the horizon.

Today she was wearing one of Jack's tank tops, one of the new ones he got for working in the gym and it was designed to be tight on him so he could show off a bit. On Lexi it was definitely doing that; the only spot it was even close to tight on was her perky tits with her harder-than-normal nipples. Jack couldn't see any hint of shorts or anything at all under the tank top, and she was carrying her phone, thumbing through whatever she was doing; Jack barely registered the faint clicking of menus as she bopped through the kitchen, her ear buds in.

The mixture of her moving, the firm wobble of her tits, the fact that she was probably naked under the shirt...under Jack's shirt, immediately made him almost uncomfortably hard and he had a very immediate need to slide his cock into her pussy, her mouth, her ass, or even into her hands.

"Holy fuck," Jack said lowly. Lexi didn't respond, she just kept moving through the room, ignoring her step brother and started humming along to the music, shaking her ass in time with her humming.

Jack felt bolder and started talking quietly...letting his lust-fueled, fuck-fogged brain take control of his inner monologue as his cock throbbed in his shorts.