Simon takes Mark and pulls him closer, his thickening hands running down Mark's back as Mark changes more, his nose upturning, the treasure trail of hairs spreading up towards his pecks. Mark's own jock strap is tightening more and more as his belly and butt expand. All around there are noises of grunting and kissing and even some ripping as clothing falls off as the other men of the football team loose their last inhibitions. There is no going back now, the musk is too strong. If anyone in the room were able to read they'd see in the fine print on the label that whoever was sprayed first would become the alpha pig - biggest, strongest, fattest. Simon's jockstrap rips, revealing huge, hairy piggy thighs and an even bigger set of balls and penis.
Mark grunts and feels as his jock strap stretches, then breaks. Simon's hoof like fingers immediately go to grope Mark's huge, hairy pig ass, finger fucking him as they both continue to change. Already Simon is nearly a head taller than anyone else, his body covered in course bristles, chunky rather than fat or muscular. He forces Mark towards his extended pig dick, the pubes around it a forest, a manly, musky smell rising from it. The other guys start to line up behind Mark at the smell, each ready to take his turn sucking their new leader's dick.