Gigi will inevitably get an erection during running, and if she is older, she will hold up her pants, especially when others see Gigi running hard in underwear. Not only when running, but also in the same way. It's all to prevent the erection from being unsightly, and underwear also protects Gigi and his ass. Especially when you have diarrhea, you accidentally pull it in your pants. Wash it and throw it directly on your underwear. Wearing small elephant trunk underwear is very popular now.