Probably with a lady called Becky Carlyle in Edinburgh, some 8-10 years ago.
Came to my hotel, we got on with the job, she insisted i put a finger or 2 in her arse as she sucked me off before telling me to fuck her arse sin a standing position for round 1. Loved it. After a relatively standard round two with her legs behind her head as I pounded, as the vinegar stroke was approaching, she asked if I was hungy and did I fancy a Chinese? So off we walked to the restaurant - mind you, I paid. Said our farewells in the taxi home...which she paid for.
Still rate her as one of my better punts.