As he proceeded through the library hunting for victims, he spotted the college's star football player at a table with some non-athletic student. It was obvious that the big guy was being tutored. Jim, the quarterback was six foot three inches and weighed 210 lbs. The other guy Rich was 5'11 and weighed 150.
Todd moved closer to hear what was being said.
"Whoa, so that's how that formula works? Gee, thanks, Rich, I really appreciate the help," said the footballer.
"You're a bright guy, Jim, you just need to exercise your mind, as well as your body," Rich said turning the page, "Now let's try a different problem."
Todd aimed his device, he knew it was cliche. He fired. Jim grew about 50 pounds of muscle bigger, and his IQ took a nose dive. He also felt his horniness level rising as Jim's testosterone levels soared.
Jim adjusted his bulge, his sleeves feeling stretching staring at the book's page. It all suddenly seemed like gibberish to him. Why did his clothes feel so tight, and why did it feel so... good? He felt his meat start to twitch.
"Jim, you okay?" Rich could tell something was wrong.
From his niche looking through a bookshelf, Todd keyed in more commands and aimed at Rich. He grinned wickedly.
Rich shrank in his clothing down to 5'2", and 99 lbs.
"This stuff make no sense," complained Jim, "It's so boring. I'd rather be getting a workout in. Ya get me Rich?" Jim wrapped a bulging arm, laden with veiny muscle around Rich's narrow shoulders and loomed over the smaller man.
Todd chuckled, "Maybe too horny?" he said to himself. "Or not enough."
"Almost forgot about their dick sizes. Let's see the football player's jersey say 14 on it, so we'll give him a 14 incher, and nerd boy? Hm? Maybe 1/2 inch?" he whispered to himself as he aimed the device.
Jim closed his eyes as he felt his cock stretch, growing massive as well as fully hard. His sense of self control was all but lost as he groped and squeezed the log shaped bulge in his shorts.
Rich felt squeezed by the much bigger man, the hulking arm around his shoulders pressing him into the musky wall of dense muscles that was Jim's chest. He peeked around the globe of pec muscle filling the shirt and witnessed Jim's other arm groping his crotch, as a pornstar cock began to stretch up from his waistband.
Todd swallowed silently as he saw the size of it.
"One last change for now." He set both men's orientation to Bisexual and aimed.