It was years ago but, from what I remember, it was definitely just posed as part of a shoot... sorry!
Regards, Wet Trousers (WT)
(I was over 18 in the pics used to make my avatar - in fact, the trousers were nearer 18 than I was!)
WT, I like the Abi Titmuss pic which you've posted! It's brightened my day.