This collection contains three stories:
 
Shrink Ray on Campus synopsis:
 
After college friends Melanie, Kristen, and Tom watch a demonstration with a shrink ray, they begin to come up with naughty ideas for its use. When the girls surprise Tom in his room after having borrowed the device, they play out the scenarios most could only dream about.
 
Contains: (shrinking man/woman)
 
Size Ray University synopsis:
 
After Doctor Katherine Walker decides to let a few students play with her matter manipulator, she decides there's much sexual fun to be had. Now, after building her own device, she learns just how much fun can come from shrinking and growing. Turning her eyes on the local university, she realizes the fun has only just started.

(Contains: Shrinking Woman/man, Growing women)
 
Size Ray Research synopsis:
 
Katherine built a size machine. After letting her friends abuse it, she is captured by the U.S. military, but it isn't because she's in trouble. A scientist in the secret lab wants to use size manipulation to further her orgasm drug. Now, Katherine is given full reign of the lab, so she calls over a few friends. Tom, Brice, Angel, Haley, and Kristen all join her and Melanie for the biggest smallest orgy ever! Amber Collins returns to one of her old favorites in a story packed with plenty of size-changing sexy fun!

Contains: (Shrinking women, men, Growing women, dick growth)