Hello Thanks for query . What you get is not a premature ejaculation but early ejaculation that happens due toexcessive secertions of mucus by Bulbo Urethral Glands located in urethra and contraction of Bulbo Spongiosus muscle in penis triggered by audio ,visual and tactile sexual stimulation resulting into ejaculation of a precum . This is normal at the age of adolescence and does not require any treatment .It will get resolved spontaneously once you get engaged in sexual activities with your wife .. Dr.Patil.