I think I'll let it drain down your tongue.

"Tongue out, toilet," demanded the principle.

You bring your tongue out again. You immediately feel a warm stream of piss rolling down from the center of your tongue, into your mouth, and down your throat. The stream continues for a couple of minutes as you embrace every second. Finally after 2 minutes, it slows to a dribble.

You feel a sharp pain as the principals hand harshly slaps your cheek.

"You clearly don't understand proper etiquette," yelled the principal. "As a toilet, just because a futa is done actively releaving herself, it does not mean your job is over! Get your lips around the tip and suck out any excess nectar!"

You do as you're told, as you quickly but gently place your lips around the tip of the principal's member and begin to suck out the remaining urine. There was still a surprising amount in it, which made sense given the monster size of it. Somehow, the nectar that was stuck inside tasted even better.

Once you stop feeling fluid coming out, you reluctantly take your mouth off of the princiapal's cock.

"Thank you miss. Sorry about that miss." You utter.

"Unless it's clearly not warranted, the last thing you must do after cleaning the futa's cock is to ask if they would like anything else," said the principal, presumably ignoring what you said. "Remember that you are a toilet, and futas are your superiors, so when you are being used by one you are her property until she decides otherwise."

"Thank you for using this toilet, miss," you say, "is there any other service you would be interested in?"

"As a matter of fact, yes," said the principal, as she brought her monstrous testicles towards your mouth. "Kiss my balls, thank me again, and then keep your mouth open."

You gently place a kiss on each one of the principal's testicles. "Thank you miss. Thank you for introducing me to this role and opening up my eyes; I now truly see what an honor it is to drink futa nectar and worship futa waste. Thank you for using me today."

You finish your groveling, and open your mouth wide.

The principal promplty leans over and spits in your mouth, before putting her massive cock away and turning around.

"Now let's see if this one has learned everything..."