Janet gazed with fixed eyes at her son's crotch, watching Shari's hand move. Barry was breathing faster, and Shari pumped faster. Now and then, Shari would look down at her brother's lap, too, her eyes shining brightly. The shoulder of her baby doll gown had fallen to her upper arm, and her small, sugary tit was exposed.

Janet's foot rocked faster, her cunt very juicy now, making the crotch of her nylon panties very wet. Her cunt had not been so wet in a very long time. She had not felt the sensations of that delicious, pulsating heat in along time. Her clit was inflamed, itching, throbbing.

Moisture was forming on Barry's pajamas where the head of his cock pressed. Janet could see it become a larger circle, see Shari's little fist pump up and down, jerking on Barry's cock.

Janet's tits rose and fell as she fought to keep her breathing even and quiet. Her eyes stared with moist heat, her lips parted.

Before Barry came, Shari slipped her hand from his pajamas, her bright eyes glancing into her brother's. They had passed a silent message to each other, and they stood. Neither looked at Janet as they started from the room. Janet saw her son's cock shoved hard against the front of his pajamas, and she noticed they were holding hands as they walked. The hem of Shari's baby doll didn't quite cover the ruffled, little-girl panties on her small ass.

Sensing the twins were leaving the room out of excitement, Janet sat on the couch, her body shaking, all kinds of ideas running through her mind. She waited as her cunt throbbed, and decided she had to see what they were up to. But Janet knew that no matter what it was, she would be unable to say anything to them.