Colleague's stinking ass

As I'm sitting at my desk working, I'm sure I can smell something really bad, I keep getting distracted from my work sniffing around. I end up sniffing my chair, putting my hands down my trousers, and sniffing my fingers. Maybe these faux leather pants are making my ass really stink. I ask if you would do me a favor and sniff my ass, and you happily oblige. I pull down my trousers so you can get a better sniff of my thong, eventually pulling them down so you can sniff my ass crack and hole. I see you're enjoying this more than you should. So while we're alone, I let you go all out, instructing you to lick, sniff and bury your tongue in my ass crack and hole.