[JammyS]

Edinburgh, and some assorted Demotix albums.

Judging from the Google+ stream the Edinburgh flash was a deliberate wardrobe malfunction. I'd have been there myself but had to work... last two are from Cambridge, doesn't look like it was a complete ah, wash-out. Counted at least five semi-naked chicks from the video posted on the FB page.

//www.demotix.com/news/7848681/world-naked-bike-ride-takes-streets-london#media-7848660
//www.demotix.com/news/7866492/wnbr-world-naked-bike-ride-london-2015#media-7866413
//www.demotix.com/news/7844557/world-naked-bike-ride-manchester#media-7844480