To answer the OP's question:
I think this varies a lot from woman to woman, situation to situation, sexual encounter to sexual encounter.
I know some women can NOT have their cervix touched, at ALL. I know some who find it SUPER arousing when it is hit. [ they swear it's the key to their orgasm, but who knows? ]
When a woman becomes sufficiently aroused, the cervix is suppose to sort of "contract" & pull itself out of the way so the penis can enter.
I know for a while, due to birth control meds, my body was not in-tune with my mind. So even tho I'd be mentally over the edge & ready for a good fuck, my body didn't agree with me. I can think of 2 times where Hubby bumped my cervix & holy sh*t did it hurt!!!
Now, when I'm super aroused, it can be pleasurable for hubby to hit it during sex, but really I'd rather have him aim for that soft area just in front of it, THAT sends me over the edge.
So I guess all in all, the answer is...it depends
