Bete it is quite common kyunki Aur yadi shareer menin uttejna adhik hogi, sex ki bhavna zyada hogi toh sheeghr patan hone ki sambhavna bhi adhik hee hogee. Toh bete Pehli baar sex kartaye samaye kya karna hai kya nahi karna hai, aur first sex ko kese theek tarah se kiya jaye is bare mein aap yaha detail mein padh lijieye : http://lovematters.in/hi/news/first-time-sex-top-five-facts