Answer: Your vagina is about 2 1/2 to 3 inches long along the front wall, towards your pubic bone, so your cervix is normally within reach of your partner's fingers, if not your own. The back wall is about an inch longer. There is no risk associated with touching the cervix, but you can accidentally scratch it; as well as your vagina. Before you allow your boyfriend to insert his fingers into your vagina, check them to see that his fingernails are trimmed and that there are no rough edges. Makes sure they are clean, even under his nails. If you would not put them in your mouth, do not put them in your vagina. If you feel any pain or discomfort let him know. Pain is not normal under any condition.