Sorry bete ling ka size bada karnay ka koi bhi tarika mojjud nahi hai. Ling ke size ki sahi jaankari yaha se hasil karo aap : http://lovematters.in/en/resource/penis-shapes-and-sizes
Aur Please size par mat jao, apna andaaz achcha karo- unke saath timing bitho theek
hai.All the best
Sorry bete ling ka size bada