Is pegging bourgeois?

(Real answers only please)

My nesting partner said the other day that they won't peg me and I'm sort of crestfallen

I asked her why and she told me she had a past relationship with some1 who she did it to and they abused her, but didn't say what

Is pegging a trait of toxic masculinity and a sign of hetronormative power play? I wasn't aware this was the case but I'm still reading theory

Thnx in advance