Dear service user, Thank you for writing to healthcare magic. I understand your concern. Inability to retract foreskin over head of penis at your age needs medical examination. Poor genital hygiene or recurrent episodes of inflammation of glance can cause it. It can be treated successfully. Kindly consult urologist for same. Medications like topical steroids or surgical treatment known as preputioplasty is helpful. You can have normal sex and you can become father. Penis size has no effect on sexual satisfaction of either partner. Wider and longer penis gives more satisfaction to partner is a myth. Unfortunately, this thing is shown dramatically in pornography. This spreads the myth more. The only outer one third and the front wall of vagina have nerve fibers and hence sensitive to stimulation. Rest of inner two third is largely insensitive. So if you want to arouse your partner during sex, you should focus on the areas of maximum nerve endings hence clitoris and inner lips or labia minora, lower one and half inch part of vagina. So for female sexual gratification, the size of erect penis could be anything from two inches or more! You remember that what important is strength and not the length! Penis entry through vaginal opening followed by to and fro continuous movements is adequate. It is men s technique, not his penis size that characterizes the lover in him. Wish you good health.