Erica wakes up and is startled by her unfamiliar surroundings. She's in a completely smooth, metallic room and lying on a hard, cold metal table. Even more starting are the two tall, green-skinned aliens standing over her! Before she can fully process what's happening, the aliens have noticed that she's awake and pulled her up to her feet. She tries to struggle, but one presses some device into her side and she feels a wave of energy wash through her, sapping her will to fight.
The aliens then look her over, apparently discussing her amongst themselves, and another device - apparently some sort of laser cutter - is produced. One alien uses it to cut through her clothes and within seconds, Erica finds herself standing naked before them, and has never felt so exposed and vulnerable.
The aliens start exploring her anatomy, feeling, poking and prodding her all over. They seem to take special interest in her large breasts and her ample buttocks, and spend a lot of time touching and feeling those. One alien points at her crotch and says something to his partner, and the two grab her again and push her back onto the table. One stands behind her, grabs her ankles and pulls her legs open, and the other takes a close look at her pussy, touches it a few times, then produces a long metal wand. Erica realizes she's about to be probed and tries to protest, but is still helpless to resist. She's shocked by the cold of the metal wand as the alien inserts it into her pussy, but the metal quickly warms up and slightly vibrates. The alien works it in and out of her, and against her will Erica finds herself soon building up to her first orgasm. As she comes, the alien continues working on her pussy with the wand, and she has several more orgasms in rapid succession, her leg muscles starting to twitch as she strains against the other alien that's still holding her ankles.
Once her probing is finally complete, Erica sees the two aliens talking amongst themselves again, apparently comparing notes about her sexual responses. One of them opens his clothing, revealing a long, green, slimy looking protuberance that she assumes is his penis. Apparently he wants to try her out first-hand! Before Erica knows what is happening, the alien has parted her legs again and impaled her pussy. He pumps her for several minutes, putting his hands all over her body as he enjoys her snatch, and the other alien observes and takes notes on her reactions. Before he comes, he stops, pulls out of her and motions for his partner to take a turn. The second alien decides to try another position and flips her over, taking her from behind.