^^^^^^This, what's in brackets,,, And a size 12 woman with curves,,, might depend on where the curves are,,, hahahaha.
My wife is 44F breasts and UK size 22. I have no problems entering her full length, especially when she is on top.
I don't know what's considered plus sized these days, but I'm a size 12, and not into giant dicks. Average is good, girthy is alright, but long ones huuuurt.