I started dating my boyfriend in 10th grade. After two weeks, we started getting over most of the nervousness that comes with new relationships and began holding hands, hugging more, holding in public and such. We hadn't done anything beyond that and kissing at this point.
One day in the lunchroom, I was standing and talking to a tableful of my friends. He walked up behind me, pressed his whole body against me and held me in a hug from behind. It felt and looked innocent... until I felt something growing increasingly hard in my lower back. After a few seconds, I was breathlessly excited. I had never 'seen' him before that, but I could tell he was HUGE. I turned my head and looked up into his face, amazed and excited. He just smiled, totally not embarrassed that he was raging hard with a noticeably gigantic tent in his pants in public pressed against me.
When we went to walk away, he reached down his pants and rearranged himself without a second thought. His outgoingness and unshyness turned me on. After school that day, we went back to his house and explored each other. I was right, he was huge at 10.5 inches long and my fingers didn't touch when I closed them around his shaft. I used both hands and jerked him to orgasm. We're graduated from high school now and we're still together after over 3 years. I love him like crazy.