Mam Mai 17year ka Hu meri GF sex karne ko taiyar h but sex time me meri uttejana jaldi Khatam ho jati h or Mera Ling bhi bhi bhot chota Hai.mai hastmaithun bhi karta Hu mujhe lagta Hai ye sab maithun k karn h Mai kya krun plz reply me mam.