I interned somewhere this summer, and I think one of my co-workers has developed a crush on me. Now I'm back at school. He will still text or call every week even though he knows that I have a boyfriend. At first, I enjoyed our conversations, but I'm starting to feel very uneasy about what's going on. I have to admit, I may not be the innocent one either because I try to make pleasant conversation with him, and I really do like talking to him. I don't want to lead him on anymore, but at the same time, I don't want to make him mad because I've accepted a position at the company and I will be working with him again. HELP!

I am having a problem with somebody else's relationship. It's my sister. I love her dearly and I know that she is being beaten by her boyfriend. She is tied to him by the fact that she has a child of six months by him. She doesn't want to come to her family for help. I think that this is largely because she is ashamed of herself and his behavior toward her. I simply cannot "mind my own business" because I am genuinely worried for her safety and the safety of my niece.

Part of me wants her to sort the problem out for herself, but she is so immature and is used to having men do things for her. This has been going on for some time now. What can I do to stop him?

I am an 18-year-old girl and it is my first year in college. I am also involved in my first physically intimate relationship. At the beginning of the relationship, I was having a lot of problems with feeling sexually aroused and being physical with my boyfriend. It made me cry almost every time. Then, I remembered some experiences involving adult sexual behavior (both physical and conversations over the phone) with my best friend in first and second grade. I had not thought of these experiences in years, and the memories, even now, make me feel sad, scared, and sometimes guilty.

I remember being afraid to see her and being very upset as a child about what we did. I don't remember much, only very small snippets of what happened here and there. I went into therapy at school, and I can be intimate now without crying, but these memories still bother me and I just want to know what to call it. Is this child-on-child sexual abuse, or just little kids exploring?

Is it possible to find female PSA, or other types of sexual fluids on another female? For example, if there was a case of women on women rape, could it be possible to find the woman's DNA on the victim? Like when they find semen on victims?

You have an excellent service and give great advice. That is why I feel comfortable asking you this question. About three weeks ago, a group of my friends and I went out to a movie and then a club where we each had some alcohol. After the club, we went back to a friend's room where the group gradually dispersed until there was only myself, two male friends, and one female friend. We began to play sex games. Eventually, we all were naked, on my friend's bed. The female of the group was the center of our activity. She seemed to want it and even encouraged what the three of us started doing to her.

Although we all were tipsy, it was a great sexual experience for all of us, or so I thought. My two male friends have no problem with what happened. The only thing is that my female friend won't speak to us or return any of our calls. I saw her walking down the street the other day and tried to talk to her, but she wouldn't even raise her head to look me in the eye. Do you have any idea what is wrong? Could my friend feel that she was raped? I want to apologize, but I'm not sure what to do.