Why do Girls Have Sex?

I had read a chapter from the book Virgin Sex for Girls, and the chapter is called Why do Girls Have Sex? This book is basically has different real life stories and under each chapter there's a numerous amount of stories. My favorite story is Melissa's Story for the simple fact I believe girls need to know that it's not about what the guy wants. It's about what you want and what your ready for. A story like this would show girls and basically tells girls you have to please yourself always because you never know what could happen. 

Melissa's Story is bout a girl named Melissa who was 14, who was dating a boy named Nick who was 17. Nick wasn't a virgin and Melissa was, so after 3 months Nick started to pressure Melissa to have sex with him.  Melissa knew she wasn't ready and she simply didn't want to have sex, so Nick told her if she doesn't give it up he's going to break up with her. Melissa did it and Nick left her anyways. This is a decision Melissa regrets and this experience kept her away from serious relationships for a while.

If I was in this situation I would of never gave it up to him and I would of broke up with him right when he said if  i don't give it up he'll leave me. If a guy pressures you to do something like that he's not wroth it. There are other guys and you could find better.