Hermione the Hex-Witch

Hermione the Hex-Witch by forbiddendesire

Finally, she relents, and you sit there, panting in relief. She chuckles.

"Oh I'm not done with you just yet!"

With that she takes a piece of rope from her bag, and ties it around the base of your cock and around your balls.

"Hopefully this little makeshift cock-ring will help you grow a bit more. It'll definitely make you more sensitive *wink*. Just lie there like a good little boy and watch me, and let's wit for it to turn purple, haha"

(tie your cock and balls)