A lady in her late 70s, so she told me. I never found out her actual age, or her name, it was casual sex on a cruise ship in a sauna then in her cabin while her husband was at the bar. She was very active and kinky for her age!
When I was nineteen a thirty two year old woman picked me up at the grocery store. Class was in session for a few weeks! Oldest age would be sixty five.
When I was 18 I slept with a 58yr old married woman, it was amazing sex, she was the next door neighbor so used to come over in the middle of the night and we would fuck for hours, one morning her husband seen her come out from my place... lot's of excuses were told... I don't think he really believed her story but it didn't stop her.
In the 1970s I was a 16yr old virgin (legal uk) apprentice decorator and she was of all things an undertaker, mid 40s attractive in a mum sort of way and freshly divorced from a sexless marriage. I was decorating the top floor of her house. It was red hot up there and ended up just wearing a pair of shorts while I worked. She brought me up a cold drink. After chatting and discovering I had never had a girlfriend she came on to me hard. I was clueless but one thing lead to another and she ended up riding me round the room like an national hunt jockey. We had sex most of the rest of the day and I had to come up with an excuse for my boss the next day when he saw I had barely progressed the job. A mid 40s man taking advantage of a 16yr old girl would be frowned on but looking back I would say I was lucky to fall into her hands and most lads my age would have been made up for it to happen to them.