heck yeah it does. when it gets bigger it's called an erection.

It's called an erection. An erection is when the guy gets sexually aroused and a lot of blood rushes to the penis therefore making it bigger than usual.

It depends how big you have had one. There is always a limit; so you cannot go bigger and bigger everytime. Try to be yourself and enjoy your relationship and you and your partner will feel fulfilled.

Blood enters the chambers in the penis causing it to stretch and grow bigger in readiness for sexual intercourse. The penis needs to be hard and erect to enter the vagina.

You'll probably get an erection, but there is no reason why it should stay big.