Shrink yourself even further to the point he barely notices you The magical size bracelet chapter 6 by SatireMarker

Still laughing and enjoying your invisibility, a nearby titanic teen said "what's up?" to Tread.

His gaze left you as he turned and said, "nothing, don't worry," before turning and sitting down again. You squeal with delight as rather than sit down, Tread began to undress. He removed his tracksuit bottoms, revealing just a pair of tight underwear showcasing a sizeable bulge. You stayed right where you were, watching the show as he pulled on a pair of shorts. Once he was done, he made to sit down again.

This time he sat down more cautiously, you noticed, more slowly, as if expecting to make contact with something. You decided to shrink even further, now down to the size of an ant. The arse now appeared to be the size of a building and you yelled out in excitement as it smothered you, utterly entombing you. You were nothing, an insect on the buttocks of this teen. He moved very slightly and you were rolled helplessly around the bench, practically stuck to him, your face buried in the shorts and the glutes. You didn't hear anything from him this time - you supposed you were shrunk so small now that he didn't feel your ant-sized presence. And that was fine with you. You luxuriated in the smell, the feel, the mind-boggling power of this boy. You felt you could stay there forever, completely enveloped in his huge shorts. Tread shifted considerably and some light flooded around you as he lifted his leg to put in his sneakers...then he leaned forward to tie up the shoe, pressing down on you even more. You shrank more...you could barely move at all, not even a single muscle. The shorts and skin of his ass had come down on you on all sides.

You could hear the hubbub of the changing room, but muffled. It began to die down as a single voice began to speak up - perhaps going over tactics for the game, but you truthfully had no idea. It's not like you were a regular intruder in professional volleyball changing rooms.

Writhing, squirming, time seemed to lose all meaning as you felt a fresh wave of total arousal every time Tread shifted even slightly in his seat. You were grateful for his lack of gas as you felt him begin to stretch.

Eventually it was over; Tread stood up as the squad went out to warm up for the game. They'd be back in 20 minutes or so...but where were you?