i was 14 and my sister was 15, she asked me if i wanted to see her camel toe, she laughed when i blushed and said whats that, she took her shorts and panties off and said now do you know, i was still blushing but was rock hard, she took me into her bedroom pushed me on her bed and undressed my, first time i've ever seen a naked woman, she sucked me and i cum straight away, she said good you'll last a lot longer for the next bit, once i was hard again she rode me bouncing up and down play with my tits she ordered, twist and pull my nipples, which was easy because they were rock hard, she played with her clit while she was riding me and told me tell her when i was ready to cum again when i did she rode me faster and we came together, she was very loud and told me i was brilliant, we had sex mant times after that, she said she had trained me to cum when she did and she always had a stronger orgasm when we cum together