The Checkum campaign, in association with Macmillan Cancer Support, features posters of more than 30 UK celebrities as Mother Nature intended, sending the message that there is no embarrassment in getting the right advice about a potentially deadly form of cancer.
Jonathan, who is used to wearing his clothes at Bellmans in Wisborough Green, Billingshurst, where the photo session took place, said: "I feel honoured to have been asked and to be part of the same campaign as famous musicians and actors. It shows we've got balls."
Not visibly so, of course, in this particular image, where his modesty is saved by a Carlton Ware vase, but even so, Jonathan admitted: "The thought of standing naked in front of a photographer filled me with dread, so to think that my photos will be reproduced in posters and put on the side of bus shelters scares the living daylights out of me. But I am also extremely excited to be part of this worthwhile campaign."
The controversial year-long campaign - which includes contributions from singer Ronan Keating, rugby international Ben Cohen and Olympic swimmer Mark Foster among others - starts next year and ends with a sale of large, framed signed prints of all the stars.
