Penis fillers, designed to increase a man's girth, are gaining in popularity, despite warnings over complications. The British Association of Urological Surgeons believe the rise is driven by a lack of self-esteem among men, whose view of a normal sized penis is distorted by pornography and whose view of cosmetic surgery has been normalised by celebrities and influencers promoting their procedures online. Two men tell the BBC’s Victoria Derbyshire programme why they are not ashamed to have them.