If both the people involved in having sex have had no previous partners of any sexual nature, is it safe to presume they don't have any STDs?

I had my first pap smear at age 21. I was told by the nurse practioner that I had to have one. It really hurt and she was irritated with me that it was taking so long to do. After she was finished she left the table and then she came back to the table where I was and she jerked my legs opened and I heard a snapping noise and thought she had popped my back. She told me I was still a virgin. But when I got home there was a lot of blood, I walked differently and my vagina seemed to be pulled down more between my legs. Is all of this normal to have happened for a first time pap smear? I feel like she actually raped me and that I have physically lost my virginity. I am becoming very depressed.

Does anal sex make your hips and bottom larger?

I am 21 years old, and have a two year old daughter so am obviously no stranger to sex. My new boyfriend, however, is a 22 year old complete virgin. We have tried to have sex on multiple occasions but once we really get ready to go for the gusto he goes limp. All the rest of the time he is extremely erect. He and I both can't understand why he continually can't stay hard even though we have tried every position and possibility in the book. I think it has something to do with the fact that he and I are both Christians, but I think his conviction about having sex before marriage is so heavy it wont allow him to stay hard. Please help!!! It's getting to the point where he wants to try almost every night and I am so tired of trying.