5.8 inches or longer – that’s the average penis size that can cause vaginal orgasms claims a new research by the Journal of Sexual Medicine. This is a damning revelation considering psychologists sexologists and their ilk have been crying hoarse that size doesn’t matter. The good news is that it only matters for some women. The research claims that women who have frequent vaginal orgasms are more likely to have it with men with larger members. Stuart Brody a psychologist at the University of the West of Scotland who conducted the research asked a sample of 323 women about previous