Some interesting articles:
Italian men aged 17-19 average 12.5cm (5") FSL not sure if its bone pressed:
Penile length and circumference: a study on 3,300 young Italian males
Mean FSL is 12.18cm (4.8"), again not sure if its bone pressed:
Size of external genital organs and somatometric parameters among physically normal men younger than 40 years old
Those measurements seem REALLY low, but maybe people who don’t pull their penises usually have longer erections than FSL?
If you guys aren’t totally grossed out by tranny’s, there is a very interesting site and kind of a funny site, its trannys measuring their pensises, I think this is a good sample because although its kind of good for trannies in porn or the escort industry or whatever it is they do (not really sure) a lot of trannies can be very successful with small penises, so its a really large and fair sample I think. Note that they don’t follow good measuring practices on that site, some are bone pressed, some aren’t, some the ruler is angled so that the measurement is even bigger than bone pressed, so you have to take it with a grain of salt, but there are some big dicks, and some really small ones, just like you’d expect to see with a good random sampling, from that site I would say 6" BPEL is average.
http://shemaleinch.com