Hello Thanks for for query, You leak semen when you touch woman. This may not be a semen but an secretion of mucus glands located in urethra which get stimulated by sexual stimulation may be in tactile sensation (Touch ) or visual stimulation seeing erotic pictures. This is common at this age and not to be worried about. Following measure will help you to boost up your confidence and getting good erection.and delay ejaculation. 1) Practice regular exercise for 45 minutes followed by meditation for 1/2 an hour in the morning. 2) Take high protein diet rich in vegetables and fruits and Vitamin A,C,D,E.and Zinc 3)Take anti oxidants like Almonds 5-6 everyday.. 4) Avoid alcohol and smoking.. Dr.Patil.