I am 20 years old and I cannot insert anything into my vagina, not even a tampon. After a month of practice, I have managed to be able to insert a finger about halfway into my vaginal canal. After that I freak out because it's uncomfortable and I pull out very quickly, which hurts a bit....
At least once every couple of days, someone posts or writes into Scarleteen reporting that vaginal entry -- usually intercourse or manual vaginal sex, and usually (but not always) with male partners -- is painful, uncomfortable, or unfulfilling for them. Whatever sort of vaginal entry we're talking about -- with fingers, a penis or a dildo, with partners of any gender -- not only doesn't have to be painful, it really shouldn't be. More than that, any kind of sex shouldn't be about a lack of pain, but about the presence of pleasure.