Quickly (or as quickly as her fat jiggling body would let her), Mary emptied a number of vanilla and chocolate packets into the machine, attached the top hose to the sink filling it up to peak capacity, and finally flipped the switch turning on the machine. She heard the machine starting up and a mechanical whirring began as a light brown liquid filled the hose on the front of the machine all the way up to the mouth piece.
Seeing that the machine was finally ready, Mary grabbed the dildo, set it on her chair, and started to sit down. She almost came just from the head entering her her tight hole. She slowly continued to slide down on it going all the way down to the base, almost cumming again once it was all in.
Now that that was done, she took hold of the tube and saw that the flow could be turned on and off by biting down on the mouth piece, and it a strap to wrap around her head to hold it in her mouth. She fixed the mouthpiece to her mouth and bit down, beginning the flow of the vanilla-chocolate shake mixture. She was ecstatic, it was delicious! Tastier than any shake had any right to be. She turned on the vibrator function on the dildo and began bouncing on the huge rod for release. In a wave of orgasmic pleasure, she came, juice squirting all over the chair and on the floor, her moans muffled this time by the delicious chocolate-vanilla flow. Yet to hit her climax though, she still was lusting for more.
She felt up her body, finding her belly to be a little bigger and a little more firm. She started rubbing it sending pleasured shivers down her spine. She was turned on even more, feeling her belly expand, sending her back to the brink of orgasm.
Looking back at the machines various dials and buttons (still drinking the shake mixture) she saw that the machine flow was only on the low setting, and went up to medium, high, and max. She knew the dildo also could be turned up even more...