...SPIT into the shot glass as you LET GO of our cock. How much spit did you get in that shot glass, boy? Why, that's barely any at all! We're going to need a lot more.
So here's what you're going to do: you're going to keep edging our little dick, and each time you do you're going to spit into the shot glass. I want you to rest for 30 seconds in between each edge, and I want a big glob of spit each time.
Give me 10 edges and spits. Your mouth should be pretty dry by the end, and that shot glass should be nice and full. Oh, and I shouldn't have to mention this, but don't even THINK about cumming.
Oh, and one other thing... I don't want our little cock getting all sticky just yet, so if it makes any precummies after you edge, scoop them up with your finger and put them in the shot glass as well.