mera penis erection k baad 5 inches ka hota h or bhot hard ho jata kafi der tak hard hi rehta hai lekin kisi ne mujhe bataya tha ki sex ke liye 7 inches ka penis hona jaruri h. ab meri 6 month baad shaadi hone wali h to kya mere sex life me problem ayegi.please mujhe iska answer batayein hindi mein please.