Sorry, I am not a woman who has had a multiple C-sections, but let me help, if I may.
With any general surgery there are complication. With C-section, usually it is a health-risk for the fetus, so doctors suggest C-section. Sometimes women do not want to deal with the pain and want to get the labor "over with," so doctors suggest c-section. Ask your doctor if there is a health risk for the fetus involved in this specific pregnany. If not, then you may ask the doctor if you want "natural" birth.
Side note: C-section is quicker and less painful for the mother. C-section is easier on the child as well, because he/she will have a better chance of not getting Erb's palsy or any other brachial plexus injury...also the fetus will be less likely to get any other injuries or infections related to going through the vaginal canal.
**Like I said, if there is no complication for the fetus with natural birth, you may ask if you want natural birth. Usually, you can ask them for caudal epidural or lumbar puncture for anesthesia (you wont feel a think).
Lumbar puncture: total anesthesia, you will not feel any pain.
Caudal Epidural: You will feel contraction, but you will not feel the effacement associated with the baby going through the cervical canal or the vaginal canal