Iwan Rheon stars in the new BBC drama Men Up, about the first-ever Viagra clinical trials in the 1990s, and has shared details from a penis measuring scene.
BBC Men Up locations: Where the real-life Welsh drama about Viagra medical trials was filmed walesonline.co.uk - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from walesonline.co.uk Daily Mail and Mail on Sunday newspapers.
A fictionalised account of the clinical trial that gave the world Viagra and its effects on the lives of the men who took part in it, here s how to watch Men Up online and wherever you are.