Encouraged To Sniff My Farts

The idea of sniffing my farts may seem appealing but the reality can be more than a slave is able to handle. I wouldn't want him to chicken out so I secure him to a chair and duct tape his mouth so he's encouraged to only breath through his nose. No cheating here, he has no choice but to breath in deeply and enjoy (or endure?) my farts to the max.
Length: 4 minutes