I am in the realm of 25 easily. The size by the way is not necessarily an advantage in that I was injured in my late teens and the size was a contributing factor. In addition, I have had to dress in certain ways because some pants and particularly swim trunks are not comfortable. The final mess is that larger than average testicles make an average penis look smaller. I have seen larger than my own, and I have seen smaller. I am an avid horseman and I can tell you that in that pursuit they are definitely not an asset.