RE: foreskins, it's abnormal for it to extend past the urethra When Erect. That's something to take into account, the penis isn't always erect, and even circumcised ones can roll up into the skin when flaccid. However, there's also a bit of plumping from the urethra during urination. So, with naturally skinned ones, it tends to pull back to expose the urethra when they urinate anyway.
Also, the "Short one" having a longer skin is just silly. Short people don't have skin hanging off their fingers, and toes, because the skin grows to cover the person. Except in rare cases where there's abnormal growths.