reply to 'successive, compulsive, multiple orgasms'-you are not alone!
I read this story with great interest as my current girlfriend (who is 61 and very fit) regularly has similar experiences, although only since our relationship started.
With my assistance she has dozens of long, intense orgasms which last anything up to five mins. She also has many hands free orgasms, most days, anywhere, anytime. She can make this happen whenever she wants with sexual thoughts, but they also happen spontaneously, often at inconvenient times.
I absolutely love it and I am happy to devote a lot of time (sometimes two or three hours) to playing with her clit and G spot while she writhes and squirms in ecstasy, with only a few minutes break between orgasms. We also have lots of great sex etc, but her amazing orgasmic ability is the best part of our relationship.
I am sure that there are plenty of mature women out there who have similar potential, and men who want to be part of the experience. This is the best sex either of us has ever had, and we have both had lots!