You notice the odd oversized watch on Mack's wrist on the hand holding your shoulder. His other hand adjusts the settings. He grins and slams his palm down on the watch. It glow yellow and green.
Mack says, "This looks like a job for Diamond Head!"
You gasp as his grip grows harder and colder. He transforms into a giant pale bluish-green crystal man like on that show Ben 10. Except he's anatomically correct, sort of, his boner is pointier than a normal man's and since it's hard as a diamond it just ripped through what was left of Mack's shorts. You have an idea of what's coming next.