She thoroughly gropes him.

The only Gem to break from the wall of voyeurs—a small yet curvy scientist wearing a visor and leotard—marched forward, and straight up grabbed Griffith's junk; groping the meaty appendage like it belonged to her. He yelped and bucked, not because she was rough but because he wasn't ready for her frigid, metallic hand.

"Cold!! Cold!!"

The geometrically-haired gem—a Peridot—was fascinated by his response. "Cold? Intriguing… temperature sensitivity of the weapon noted." She clicked at a holo-computer that floated beside her, "Next, I will probe subject 'Griff-ith' for further data. Adjusting for warmth."

She grabbed onto her wrist and unscrewed her hand, twisting till it popped off. Griffith stared on aghast and mystified, for a humanoid hand was obscured underneath her high-tech prosthesis.

"This data will be invaluable. The Griff-ith's 'DNA rifle' is perfect for further study! Provided the weapon isn't dangerous…" Peridot said, groping his member with trepidation; she prodded and stroked the man despite his numerous protests, but she was hardly one to heed a subject’s complaints.

As the de-facto biologist molested Griffith's dick to half-mast, he pulled at his unshakable restraints and yelped, "Hey! Don't touch that!"

His pleas continued to be ignored as Peridot jacked him off, pointing an energy ray at his flushing face; she stroked until Griffith's was stiff like a flagpole and a little fluid began to leak out.

"What is this substance?! Have I been contaminated?!" The woman cried, as a small drip of pre-cum smeared across her green palm. She was too hysterical to ask, and instead merely yelled while pointing an energy gun at her test-subject, "What is the purpose of this viscous excretion! Answer me 'Griff-ith'!"

"It's, for, uh, it's a,— I'm not sure! That stuff just sorta leaks out! But it's harmless, so don't shoot me!"

She exhaled dramatically, and lowered her glowing handblaster, "Harmless? Noted. Hmmmm…"

Violently defenestrating the scientific method, Peridot licked the pre-cum off of her hand, and found it to have a flavor that was pleasant beyond all common descriptors. A lust overtook her rational thoughts, and Peridot said to her sexy lab-rat, "Listen, I'm going to sex you. But this encounter will be exclusively for the scientific benefit of Gemkind!"

She pulled the crotch of her verdant leotard aside, revealing to Griffith a glistening little pussy; its bush trimmed short, and a light blonde like up top, the scientist was wetter than Hell in a flood. A couple buttons on the panel beside his public prison were tapped, and the plasma-rack rotated to just the right angle for his cock to be mounted.

The lime-green girl looked back to their gathered audience as she climbed onto the rack's frame, hesitant to go further until a voice from the crowd shouted, "Get some, Peridot!!"

Straddling the helpless hunk and moving onto his throbbing dick, Peridot hollered back to the enraptured audience, "Okay! Watch this Zircon— I will get my science on!"

At the horny crowd's behest, the bombshell technician began to 'scientifically' rape Griffith; clumsy in her gyrations atop his cock, she discovered many intriguing sensations, because—like most of the Gems gathered to ogle their nude prisoner—she'd never put something larger than a finger inside her pussy.

They both drew closer to orgasm as Peridot rode him like an inebriated paraplegic; she had no skill, but her sex was tighter than should've ever fit around his cock, and each minute hip thrust overstimulated him.

Limbs shackled, and body made a plaything for another cruelly curious woman, Griffith begged her to stop.

She wouldn't.