I think you should wait to have sex. I didn't have sex until I was nineteen. I didn't know about it until I was twenty-three.
13 for me. Yea, too emotionally immature. Fell in love where there was none. Actually i didnt understand love and it was just sex. She was 18. Learned a few years later that my brother (14 years older than I) somehow "talked" his sister-in-law into making me more manly.