As you feel your new giant throbbing cock up you feel another tingle up near your chest, you gasp as you feel your upper chest expanding. The feeling than moves to your arms and before you know it your arms have become muscular, the veins starting to pop out you bring your other arm over to feel it only to find that the same thing has happened to it too! Suddenly you hear a tear and looking down your chest juts out, your shirt nothing but string now. You now not only have huge muscular arms but also a muscular chest. The muscles finally stop, your arms now just a throbbing lump of muscles and your chest the size is larger than a full grown man's. You run your hands along your rock-hard chiseled abs and come across your nipples. They are now more puffed out.