Just five per cent of erect penises are bigger than 6.3 inches (16cm) long. Sophie Jones says boyfriend Tom's huge penis makes sex quite tricky. 7.
Long enough? Girthy enough? Do you measure up to other men? It seems every guy either wants to tell you how huge his penis is, or make it.
The Reality of Having a Large Penis, From People Who Know suggesting any penis longer than 16 to 17cm is at the extreme of the spectrum.