Nice and slow, at first

You can feel the penetration happen but it takes a second to register. You're not sure what to take from it other than let out a small gasp. "Oh, John. You really like this, huh?"

You're not gonna lie, the deeper she goes, the better it feels, but you're not gonna admit to it. The issue with that is, your dick starts standing at full attention, letting her know how much you're enjoying this. "Oh my god, I can't believe you're into this. I knew you were different, John. It's okay though. I won't judge you, I'll show you a good time."

You feel her push the dildo deeper in, until eventually it brushes against your prostate. Then you let out a small, almost girly moan. "Ooh, you're liking this a lot more than I thought you would." You're embarrassed more than you've ever been. Sami is fucking your ass and you're actually enjoying it.

Sami beings picking up the pace, fucking you as best as she can, realistically as she can. You feel like you're actually being pounded by someone and you don't know if you like it. She reaches a speed where it feels like you're being used for fucking. Really all you are right now is Sami's plaything. You told yourself from the beginning you want to make her happy, but you didn't know it would include this.

You feel pressure building, but you never reach completion. Sami shows her frustration in this. Wanting to embarrass you more, she increases her speed. She really wants you to cum from this and you can't. You don't have the experience to cum from this, and you doubt she'd let touch yourself.

Sami eventually slows down, seeing no progress. She finishes with her pounding and completes your punishment. "Hmm, I really thought that would do the trick. Seems like I'm gonna have to fix this issue." You wonder what she means by that. "Okay, your punishment is done. Go take a shower or whatever. Tomorrow I'll have something for you." 'Oh god, not another "present".'

You put your clothes on, go upstairs and proceed to take a shower. You finish your shower and go upstairs and strip your clothes. Laying down in your bed, you wonder what you've done to yourself. Letting her humiliate you like this. You close your eyes and drift to sleep.