Oh absolutely
I’m a ballet dancer, so I’m not sure if the studio counts, but guys in ballet are freaking jacked, like they got cake.
And they’re in spandex and leotards and just… gosh. Tiny bulges would easily show up on their clothing and that is not an easy mental image to push aside.
As for regular gyms, I have certainly imagined getting just small enough to squeeze under the door, eye up the guys in there… catch ones eye before getting snuck on back to his place~