The bright green beam strikes the policegirl in the center of her chest, bouncing from girl to girl and linking them in joined agony.

Their muscles go rigid and they spasm uncontrollably as all of their organs instantly liquefy.

Strong contractions from their abdominal muscles force them to violently squirt out their jellied insides through their pussies and loosened anal sphincters. Liquefied uteruses, intestines, kidneys, hearts, lungs and brains splatter into a pool at the base of the tube.

Then, pop…
Their muscles and tendons explode into a mass of messy green goop.
All that's left of the girls are piles of bones filling clothing.

The liquid girls splash into one another, becoming one large mixed organic pool that fills the tube.

The aliens syphon off the goo through tubes to be processed into weapons biofuel. All thats left of the girls are piles of bones filling clothing resting at the bottom of the tube.

When the next set of girls are beamed up into the saucer, they won't be left with any wonder about what their fates are going to be.