Carmen feels that her sweaty gym feet aren't enough for her foot-slave so she decides to make him sniff her damp, moist socks that are soiled in her foot sweat and the inside of her gym sneakers. The smell of those sneakers could even fog up the camera lens, I wonder how Marcus felt when he had to inhale the odor from her funky gym sneakers. On top of all this the smell of her ripe feet are completely breath-taking