How To Get Rid Of Semen Leakage?

I M 30 YEARS OLD MALE, JUST MARRIED, MY PROBLEM IS WHEN I SEE AND TALK TO MY WIFE OR ANY OTHER WOMEN/GIRL OF SAME AGE, EVEN I WATCH LOVE SCENES IN ANY NORMAL 'U' GRADE MOVIES, EVEN THEN MY PENIS GETS EXCITED AND IMMEDIATELY MY SEMENT BEGAN TO EJACULATE (IN 20-30 SECONDS SEMEN BEGINS TO EJACULATE) MY SEMEN SEEMS VERY THIN LIQUID AND THERE IS CONSIDERABLE AMOUNT OF SKIN ON TIP OF MY PENIS, PLEASE RESOLVE MY PROBLEM, I M IN PUNE RIGHT NOW AND WORKING IN A BANK