I'm going to put you in the best position to serve me. All the way down, further and further. There we go, directly underneath my juicy sweaty ass crack. That's where you need to be to be of good use.
You've so generously offered to be my seat today and your nose is going to fit perfectly between my juicy ass cheeks. I know you're waiting to take a nice long whiff of my hairy ass crack.
Oops it looks like your nose is perfectly ergonomically shaped to fit right up against my asshole while I let out a stinker.