In swim, every boy wore a speedo. Ty decided to have some fun with some of the boys. He chose Trent.
Trent was 5'8" with a buff but not overly buff build. He was one of the faster swimmers on the team. He also looked fairly average down there.
But no longer. Ty looked at Trent and concentrated.
Trent felt a stirring in his genitals. He looked down, and saw nothing out of the ordinary. But then he realized; the material was swelling around his penis. Or more accurately, his penis was growing.
Trent's now 8 inch cock was making itself known in his speedo, and it continued to grow. Ty quickly wished no one would find it unusual. He also wished Trent's speedo would adjust for the size.
Trent watched in part horror, part pleasure as his cock ballooned to 12 inches, then 13, then 14, then 15, then 16... Ty stopped it at 16 massive soft inches.
Trent's speedo stuck out half a foot from the rest of his body, and the outline of his penis was clearly visible.
Ty decided to...