You are starting to get serious with your girlfriend and ready to take it to the next step. You and your mom have always had such an open and honest relationship, so you decide to ask her for some help. You don't know what kind of condom to use or what size. She lets you know in order for her to really help she is going to need to see how big your cock has grown. She also wants to make sure that you know how to put it on correctly. She talks you into letting her demonstrate it on you and you don't mind at all.