Shirts protect your joints when going heavy, not "allow" you to lift heavy. Yeah, your ass popped up off that bench, which is unfortunate but nonetheless your feat was impressive.
Does this girl actually believe she's in control because she 'submits' to her ass being gaped? Good for her she enjoys her profession but she is just a pretty face and empty body to be stabbed with cocks for viewing pleasure.
Shirts protect your joints when going heavy, not "allow" you to lift heavy. Yeah, your ass popped up off that bench, which is unfortunate but nonetheless your feat was impressive.