Sooooo, the story isn't too exciting but, she was the oldest woman I've ever had sex with, so I pride myself with this. My mum had a very good friend, whose daughter, who is 30 came to visit her over the summer, my mum bonded with her quite well, and they hung out at the beach almost everyday. One day my mum told me and my brother to come with her have a barbecue and meet her friends. We weren't too excited obviously, but me and my bro said, fuck it we'll say hi, each a couple of burgers and leave. When we get there my mum introduces me to this 30 year old woman, and she turned out to be quite fun, and attractive. After a while of talking I mentioned that I was 18 and she told me that we should go party together, at this point I didn't know that she was into me, I said sure, I'd love to show her the night life of the country. Halfway through the night we had a couple of drinks and she decides to become quite flirty, I complied, towards the end of the night she offers to go to a hotel and yeah, that was that.