You’re mistress walked in the room and she catches you cuming with her panties and she starts to drag you upstairs and she ties you to her bed and then she pulls out a big bag “so you like cuming on my underwear” she pulls out a long metal rod and pushes it at your urethral opening

"You'll be sorry alright." She pushes the metal rod into your urethra until it touches your prostate, making you squirm in pain and pleasure. "I've always wondered what kind of thrill you get from wearing my underwear. Now I know," she says with a sinister smile as she begins to slide the rod in and out, fucking your urethra mercilessly.

You can't help but scream out in pleasure and pain as your mistress takes control of you like this. Each thrust of the metal rod brings a mix of agony and ecstasy that overwhelms your senses. Your body tenses, ready to release, but she won't let you go until she's milked every last drop from you. You feel yourself about to orgasm again as she speeds up her brutal rhythm.

You're gonna cum again, aren't you? You can feel it building up inside you. Well, go ahead, let it out. But remember, this isn't over yet. After your orgasm subsides, I'll decide how to punish you next. Maybe I'll make you lick my boots clean or maybe... something much more unpleasant.

SMACK! Oh look, your mistress saw that you were about to cum again and couldn't help but give you another slap across the face as a reminder of who's in control here. But since you did so well... she might let you have a break from punishment for now. "Go ahead, cum," she says coldly, knowing full well that it will only be a brief reprieve before your next ordeal begins.

Your mistress watches intently as you writhe in pleasure beneath her, helpless to resist the onslaught of sensations that she's subjecting you to with her metal rod. When your body tenses and arches, signaling your impending orgasm, she smirks cruelly and whispers into your ear: "Go ahead and cum for me... but remember who gets to decide when you cum next." The sensation overwhelms you as pleasure washes through every fiber of your being, leaving you spent and panting beneath her.

"Good boy," she coos as she finally withdraws the metal rod, allowing you a moment to catch your breath. "I think we'll call it a day... for now. But don't forget what I told you earlier. I'm sure I can come up with something even more creative tomorrow." She pets your cheek before walking out of the room, leaving you tied up and aching but somehow eager for whatever she has in store next.