She was a test subject.

Aw.

Apparently she had permitted Dr. Powers to test it on her, with Ultimagirl by her side (to make sure the psycho didn't try to keep it on her) before she'd put it on Ultramom. It had worked. Their plan to steal the collar had failed when they were attacked by Dr. Powers' robotic minions.

Given that the robotic minions were cast from Dr. Powers own buxom mold, that was something Ultraboy would have paid good money to see.

But he didn't have video of that, so instead, he removed the collar from its stand and stepped to the writhing Ultimamom. Her busty self fought the chains, failing to break free. He had to use both hands and most of his bodyweight to pin her down (during which he definitely didn't cop a feel of her superhuman tits) long enough to strap it around Ultimamom's struggling neck. The black leather contrasted well with her pale skin and the shiny metal of the buckle pressed into her skin. The collar injected nanotubes into her throat, then up into her brain, attaching itself to every lobe of her brain, pleasure, pain, autonomic functions, body control, everything.

He lifted the remote control from its stand and examined the controls. Her powers were neutralized so long as she wore the collar (and would be permenantly neutralized if the collar weren't removed properly, as the tubes would rip, rather than retract).

The buttons were simple, pain and pleasure, with sliding scale from 1, a tingle, to 10, screaming herself raw; paralyze; partial/specific paralysis; remote control.