Were the three of them not so thoroughly entranced at the moment, were Alexis not so occuppied with how good it feels to have her massive breasts suckled simultaneously, were the boys not so hypnotized by the influx of sweet bodily nectar, they would have noticed things.
For one thing, they would have noticed the extra heft their bodies were taking. Alexis's hips widened, and her shoulders and neck broadened out as horns slowly creeped from her forehead. Her hands and feet began slowly taking on more hooflike qualities.
The boys as well, were growing. Thicker, darker. Broadly muscled. Hooflike hands and feet. Their faces widened, their body hair thickened.
They also would have noticed how very quiet the milk bar had gotten. Everyone had stopped what they were doing and watched Alexis, Jon, and Ben. They were the only ones enduring this change, and were doing so completely oblivious to everything!
"Yes... yess..." Alexis moans, her voice deepening as her face broadens into a bovine configuration. "Yeesssssmmmmmmmooooooooo!!"
That seemed to be enough of a signal to the waitresses, who walked over to their table and reached underneath it. Buttons were pushed, and wheels emerged from underneath, and sides came up to enclose the trio as their table and they were wheeled into the back.
"Okay, folks! Show's over!" The last waitress calls before joining her fellow cow-women in the back with the latest additions.