Looking up to little sister.

Staring at those two, large round ass globes, Josh seriously considered running away, spending several moments deciding, now shifting his eyes to the ground as he slowing approached the driver side door. “How big is she now? Will she keep growing like this? Will she grow as big as me… or will she *gulp* grow even bigger than me?” He squirmed anxiously at that last part, while at the same time getting sexually excited by it. His heart was racing, then his thoughts suddenly shifted, “God that golden ass is round. And fuck, those tits, I bet her nipples are amazing now, I-…” his thoughts were interrupted by a small, focused but soft bump on the middle of his back.

“Josh? Hee-hee, we going?” the voice of his sister came from behind him, startlingly higher than he was used to her voice coming from. Seemed he had been lost in thought for a few minutes now. Unable to resist the urge to satisfy his curiosity, he slowly turned around looking for what he knew must have been the object that bumped him. An enormous nipple, tightly wrapped by what had to be his wifebeater, folded down along her breast, still protruding from her breast by girth alone! Josh was overwhelmed. “Ahem” said a cheerful voice above. Josh slowly raised his head coming out of his nipple-trance, and looked foward.

Josh became petrified to see his sister’s grinning mouth, a sudden lightning bolt of shock hit him as he had to look slightly upwards to meet Liz’s eyes, a full two inches above his own. His dick strained painfully against his cargo shorts in frightened arousal. Liz as well, standing this close to him got aroused by the realization of her new position to her ‘big’ brother, and that arousal was enhanced immensely as she noticed his reaction to it. “Let’s goooo… ‘big’ brother” she said with emphasis on the ‘big’, only being able to half-mask her amusement. She stepped closer, inches from his face, pressing her breasts into him and forcing him to turn his head up to look at her eyes, “I really gotta get home, my new muscles are just aching for a workout.” She said smirking.

She turned briskly around on the spot to return to her side of the car, not expecting her huge jutting ass to just graze Josh’s caged cock. She shivered, and over excited, quickly hurried to her side feeling a little of the fear Josh was feeling. Was she going too far? Getting too excited by her brother? Josh on the other side stood for a moment, dazed, but suddenly was snapped out of it noticing that everyone else in the parking lot was staring at him and his sister with open mouths. Blushing, he quickly abandoned his plan to flee and got in the car, poorly trying to pretend at the last moment that he wasn’t surprised to see this girl. Josh shut the door to find an excited grin on his sister, and after a quick glance at her breast he started the car and pulled out of the parking lot. Liz took a look over herself to admire the body that was having such a profound effect on her own brother. Her skin had darkened last she noticed to a nice gold from the hour or so she spent waiting, not too much so she looked orange or brown, but a golden tan. She assumed that her hyper charged body must take to tanning very quickly and easily, noticing the lack of tan lines. Liz looked over at her brother, watching him sweat as he desperately tried to focus solely on the road, and let her eyes wander to his package. Her nipples started to get hard.