Yes

You don't want this thing in your mouth, but you don't want to make your situation any worse than it already is. You slowly open your mouth into a small "O" shape.

"I said 'Say Aaaahhh', slave" she scorns, "Are you desperate for more punishment?"

Your cheeks flush with embarrassment as you follow her orders. The block you are strapped to resonates under your chest with the vowel.

"Now stick out your tongue"

Too far along to refuse now, you comply with her demands. As the butt plug is placed on your tongue, you can still feel the warmth from your ass. This brings you more embarrassment than the act of asking for it. She lets the plug rest on your extended tongue until you begin to drool before gently sliding it towards the back of your throat. You close your mouth around it to avoid gagging.

"Good slave." She smiles, patting you on the head. "Suck on that until I return and I just might get you released from this block."

She trots out of the room without another word.