According to one study, the average depth of a vagina is about 3.77 While a vagina expands during arousal, a large penis or sex toy can still.
But if you feel a penis or sex toy hitting your cervix, that could mean your . The vagina's depth, smell, and color of the skin, among other things.
The vaginal canal undergoes many changes, and no two are same. discomfort when trying to insert a tampon, menstrual cup, or sex toy.