Jon looked down between his legs, "Yeah, I can definately improve myself" He thought. He pictured himself with a bigger dick but then decided it'd be too much to risk his manhood first try. After all he never used this on himself. Hmmm, maybe if he changed his balls first it'd be less risky.
He looked between his legs and said "I wish I had a larger set of balls" Sure enough a bulge grew in his underwear as his testes swelled, his scrotal sack filled more and more.
Meanwhile things just got very awkward for karyn.