So Twilight doesn't like being called dumb but is fine with being called bitch? Also Celestia saying bitch feels a little jarring, everything else was nice though. Wish more people did Twilight and Celestia face-sitting.

And that's why you work out what names you'll be calling beforehand. The fact that they didn't work out anything beforehand is the biggest flaw in this chapter I think.

5815566 Why are you surprised Twilight is hurt by insults against her intelligence more than general ones?

I enjoyed this! A little "50 Shades of Grey" ish, but that might just be me. I loved it. Keep it up.

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I'm more surprised she's okay with being insulted by Celestia at all, though yes insults directed toward her intelligence would sting more so you got me there. I just don't see them using words like that this freely, though that's arguably a matter of personal taste.

I was weirdly pleased to see a safeword used in this fic. A lot of erotic fiction seems to forget that bodies have limits.

This is totally beyond my expectation, it's well written, and insanely hot.

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5820239 seriously, I mean, what if their bum bum gets hurt!!??

This story is really good . I find it kinda funny . Except for the part where twi gets hurt . But good thing for the safe word . Also next chapter please.