Zoe is higher in status than avril and they both understand it. When Zoe wants to have fun with avril, avril has no right to stop her. She is obliged to follow all her orders. Zoe returned from training and ordered the slave to kneel. avril understood what awaited her and faithfully knelt down and took off Zoe's sneakers. After that, she sniffed Zoe's socks and licked her sweaty armpits. "Hahaha! I like your obedience and devotion.. I like that you know your place! I had a pretty intense training today.. You probably already understood this by the smell of my socks and armpits?" - Zoe laughed. She pulled out her insoles and avril start to sniff them and lick the sweat off them. She sniffed Zoe's ass until Zoe shoved her socks into her mouth. After avril licked Zoe's sweaty feet and realized that she was in her power.