I found Kelvin's Massage with his partner Maxy. Not sure if links work here, but:

or kelvinmassage co followed by a uk and look for the vip-couples page, if links are censored

Withnail and I

I came in Hyde Park once. My girlfriend came first (never let it be said that I'm not a gentleman), then my turn, under a tree on a sunny Sunday.

Probably the most memorable was at an MMMF party that we took outside, to the garden, on the banks of the Thames (a quiet and rural part of the river). As she was on all fours, plugged at both ends, a boat went by... it took me ages to stop laughing about that