"Excuse me Sir, would you mind if I took some photos of you standing there naked masturbating, only my friends at our coffee morning won't believe me if I told them what a saw on my morning walk. Can I also get some of you ejaculating that will really make then jealous."
"He said he wanted to go on a photo shoot and asked if I would take his photos. Of course I said yes, I didn't know he was going to strip naked and masturbate in the woods. Mind you it was a turn on and good fun and I got some really good shots of him ejaculating."