Ben learned in the following days that the nanobots Gwen had filled him with didn't give her complete control over his movements. If he were to try, he could turn and bolt off in any given direction to try and flee her. He'd have to do it with a foot and a half long cock trying in vein to tear through his shorts, hands that kept attempting to slap him in the face, and skin so sensitive every movement could make him cum if he were able, but if he could really brute force through that, he could do it.
But then came the issue that Gwen could easily catch him with almost any of her aliens even before she had the nanobots put into him. With them in, he didn't have a hope in hell, which he was gradually beginning to accept as his role in life, upsetting as it was. He woke each morning with Gwen riding his cock until she got off, letting him cum at all as she didn't like taking seed that early. She'd let him get off when they showered, always together with him hammering her pussy as hard as she ordered, but only if he got her to cum quick enough. If he couldn't, he'd have to hold the cum until some random point later in the day when Gwen was in the mood to take it, by which point he was usually dying from how tightly wound up he was.
Watching him squirm got Gwen wet every time though, and she had no intentions of slowing down. In fact, she was getting all kinds of ideas for him, many involving her various aliens. One day, Gwen waited until they were all heading to a store and ordered Ben to come with her. She and Ben left the store while Grandpa Max continued to shop. Once at the RV, Gwen ordered Ben to undress while she took out various items; a few camera, her laptop, a set of vibrators, a collar with a tag reading 'boy slut', and a fleshlight.
Ben was getting a sinking feeling even before Gwen took out her watch and changed her form. The form she chose for today was a machine manipulating alien they had labelled Upgrade for its ability to absorb and improve upon existing devices. Once in this form, Gwen began absorbing the items she'd taken out, and merging with the chair Ben was sitting as well.
Before Ben could move, shackles locked his legs and hips in place so he couldn't move from where he was. The vibrator was attached to his balls to begin sending intense vibrations through his sensitive balls. The collar locked around his neck. The webcams moved into positions around Ben's body to get every angle possible, and the laptop began streaming the footage. In the seconds since she'd absorbed it, Gwen had used her laptop to set up a porn stream, and was now live for anyone to log in and see him naked and stiff as a board.
At Gwen's order, which the viewers couldn't hear, Ben gripped his cock and began desperately stroking it with both hands, the restricted feeling matched with the vibrations making him desire nothing more than his climax. Gwen could see the viewer count rise as more people watched, drawn in by Ben's young form jerking his rod, which grew larger the longer he went from Gwen's nanobots.
Within ten minutes Ben was pumping his hands along a foot long cock, the growth and the hardness hurting even when he was still. He couldn't stop stroking himself. He knew that no amount of jerking would push him over the edge, but he still couldn't stop, he needed release too desperately to think clearly or rationally. Gwen watched him struggle, getting more and more riled up as she did.
When she could tell he was nearly about to burst into tears from the pressure, Gwen moved the fleshlight over, taking his entire cock into it at once. She sealed it around his waist with the shackles so he couldn't remove it, the toy sucking his rod hard. Gwen could feel through it as though Ben were fucking her, and so ordered him to fuck the toy as hard as he could. Ben did so immediately and aggressively, but still was unable to cum in spite of how intensely he needed it. His frustration and desperation was clear on his face, and the viewers were loving it.
Gwen loved it to, and when she came, it send a small shock through his abused cock, making him scream and begin begging Gwen desperately for release. The begging got Gwen going, and she came again a few minutes later, shocking his member again. After her third climax, she let the nanobots relax so Ben could cum. He screamed from the intensity as he filled the fleshlight completely and continued cumming, dumping seed onto himself and onto the floor around him until he was practically in a puddle.
As Ben laid back, enjoying the few moments of rest Gwen let him have, a message flashed up on the screen for the viewers to see: Any females want a free fuck with him come to this address and meet in the upstairs bathroom. Gwen gave the address for the nearby store before ending the stream and exiting Upgrade mode to return to human. As Ben rested, Gwen waited a few minutes to let the watch charge back up and for any takers to arrive at the store.
Gwen then smiled, taking on a different alien form, the specter-like being they'd named Ghostfreak. Ben was in so much relief from the climax, he hadn't even noticed that anything had happened until Gwen phased into him, taking control of his body. Grinning, Gwen puppeted Ben's body to stand up, exiting the RV without getting dressed. Fully naked and with a foot long hard-on, Gwen moved Ben against his will through public, into the store, up the stairs, and into the woman's restroom. Already a line of fix or so woman had formed.
Gwen had Ben smile as cutely as possible, "I can please four of you at once, and you can be as rough as you want. I'm just a worthless boy whore, and my mistress said I should always be treated like one." Gwen exited Ben's body as the woman grabbed him. Another feature that the nanobots had that Gwen had chosen not to mention was the chemical they let off, a pheromone that would attract women. Not just make them want him though, it was powerful enough that it would drive them to want to dominate him. Gwen couldn't remember anything at all about how she had made it while she was Greymatter, but she loved that she had, and sat back to watch the wonderful show.