My ex female colleague ( after work hours) she caught me wanking watching porn and she made me lick her pussy and pee in my mouth.
I was security and she was cleaner, kind of bla...il me but I loved it.
Numerous car parks
Camper vans / work van
Pub toilets
Tent on a packed camp site
Bosses back garden on a beautiful summer afternoon (very happy memories)
On bonnet of the car parked at a pub car park.
Clumber park.
On the grass in the back garden with the hot summer sun beating down. Not exactly public but the neighbours might have got an eyeful if they looked over the fence.
Old disused airfield.
Spa changing room cubicle. Reception did comment about how long we had taken getting dressed.
Beach.
Many years ago (when there weren't so many cameras) played with a girlfriend on Paddington station concourse while waiting to get the last train to her place. We were quite discreet about it, it was winter so we both had big coats to wrap around us