C'mon slave, follow her feet. Marie is busy chatting it up with her girlfriend while her pet worships her feet, but just because he is bound doesn't mean he must stop when she walks away. No, he needs to quickly hobble after her and continue to adore her feet. It hurts a bit to move around like that but whatever, Marie expects his lips to maintain contact with her feet in an adoring fashion even as she moves around. So keep up and continue to worship her feet like a good slave should.