Compelled to please: Girlfriend gives oral despite distaste

My girlfriend is a stunning girl, but sometimes she can be quite strange. She has a weird relationship with giving oral, and I think she really hates it. She never gives head to anyone, and I think it's because of her past experiences. But when it comes to her, she just can't resist. So, the other day, I was talking with my friend about it, and he told me that there was nothing wrong with it, and that it was just her being herself. I believed him, and I decided to try and talk to her about it. She was very open with me, and I could tell that she really wanted to do it for me. So, the next day, when we were alone, she took off her top and started to suck my cock. It was the hottest thing I had ever seen, and I couldn't believe it. She gave me the best blowjob of my life, and I knew that I would never have to worry about this again.