Wife Calling Herself “Mommy” in bed - Was a Big Turn On. Is it Common?

I know “daddy” talk is very common and mainstream, but how common is “mommy” talk?

The other night while my wife was riding me, she blurted out “Mmm mommy loves your big cock baby” and I found it really hot and dug into it, responding something like “mmm mommy your pussy feels so good wrapped around it.”

Then when she was jerking me off to finish me she said “Cum for mommy big boy.”

We didn’t really talk about it after and I felt kind of weird letting her know I found it to be hot. It was kind of out of nowhere but I’m assuming she likes it as she initiated it.