I was at my boyfriend’s house a couple days ago and his parents left to bring his nephew to a race car show or something like that. While they were gone, we decided to have intercourse. His mother walked in the house to find us in his bed having sex. I was so embarrassed; I put my clothes on and just laid there. I didn't say one word after that, I just kind of sat on the floor and cried. I called to get a ride home immediately but now I'm scared she's going to tell my grandmother who is my guardian and I can tell her myself. I want to know how I should tell my grandmother I'm sexually active and if I should write a letter to his mother apologizing. I feel she might hate me now. I don't know what to do...

Is there any way to see if the girl is still a virgin? By looking at her face closely? Or any changes in her?

My boyfriend recently started kissing my breasts and sucking on them. How far is that? Is that considered "sex", first base, second, third, or fourth. By the way, what do they all stand for?