See, doggy does well, doggy gets a treat. Give me 200 worship strokes while you stare at my crotch. You want to shoot so badly don't you, Baby? You are just dying for release aren't you? Beg me.
"Yes Mistress! My pathetic cock is dying for release. I beg you for mercy."
Then release you shall have, but not the kind you want. ^_^ Go to the bathroom again and repeat the previous assignment. 5 seconds of peeing while hard, stop completely, then 5 more seconds and return.