Mr. Mark Mark OF claims that his "member" measures a whopping 28 cm-long (when it's erect). It would have been better if he had placed that blue-collar measuring tape right on his "limb", trying to make both (the "limb" and the tape) as straight as possible... looking for the straightness of a straight line, like this, we would know for sure the length of that thing, which in itself can already be seen to be enormous. It is impossible to fit 28 cm inside someone's body!!!
Every penis has a true length (from the base to the tip, where the urethral meatus is) and also it has a penetrable length (the number of true cm that can effectively enter the hole...) which means say that there are a few cm that will be left out.-