You awake with your morning wood tenting your jockstrap pouch. You feel an intense sense of warmth and security as you lie in bed wearing only your magic jockstrap. The empty box it came in is on your nightstand. You pick it up and glance at it. The shop clerk said that all the magical properties were written on the box.
It's labeling is pretty generic. There is a silhouette of a muscular man, and the words
"Magic Athletic Supporter, One Size Fits All."
Next thing you know you've spent at least an hour exercising doing situps and pushups and calisthenics that you didn't know you could do. You want to do more. You have never been overly much into working out. Maybe it's the jockstrap being athletically supportive.
You hear your name. Mother is calling you to breakfast. Your body is slick with sweat from your morning workout. You need a shower.
"Sorry! Overslept! Need to.shower first!" you shout back.
You still feel great. Only when you remove your magic athletic supporter do your muscles start to ache. The hot shower relieves the pain. After toweling off you put the supporter back on after sniffing it. It smells like it is still fresh out of the box. Any residual aches from your body are gone.
You put on your tube socks, but discover that none of your other clothes fot right. You look at yourself in the mirror. Your body is different. It's now shaped just like the muscleman's silhouette on the box cover. No wonder your clothes don't fit quite the way they did before. You manage to put on a pair of shorts and a tee shirt and head to breakfast. You bump the nightstand and the box falls into the trash.