I am very happily & securely married; I also have a long established (married) lady friend I meet from time to time, though not often enough (she also has one or two other 'established 'interests').

I would like to meet either another couple or a lady in a similar situation for (ideally) a long term mutually enjoyable friendship.

I am 5-10, slim (slimish) fit (fittish), good company, civilised, house-trained, discrete, polite, respectful - and reliable.

I can accomodate from time to time.