Jon couldn't help himself: his mind kept drifting to the sexual possibilities of the experience manipulator. He could make himself a skilled lover, or give someone all the skills of a professional stripper, or concubine, or his ideal sexual partner. And, well, Karyn was his friend, but she was there, and she was a girl. He readied the device before Karyn could protest.
"You don't know how to be upset with me," he said, targeting the device at his friend. The familiar light washed over her.
"Jon, what... that's strange. I know that should have made me mad, but I just can't bring myself to get worked up about it. What did you do that for?" She thought back to a few moments ago when Jon had taken away her ability to stand, or added the nudity clause to her flying experience. She could only think positively about Jon. She trusted him as her friend, and knew he could fix anything he did to her.
"Don't worry, Karyn, it's just another test." Jon was only slightly surprised at how calm his friend seemed. Curious about this effect's limits, he reached up and cupped Karyn's breasts, hefting their weight. Even through her shirt they felt amazing in his untrained hands, and his already-stiff boner only became more extreme. He was sure Karyn could see the outline on his jeans.
She looked down to watch his groping, appearing more nonplussed than anything else.