A slightly odd question (Help me win a wager)

Hello everyone!

Before I present my question to you, I would like to firstly to apologize for the nature of it as it is a bit childish and stupid.

I do not know if some of you will find it inappropriate but I have made a wager and I need answers.

So here it is:

A friend and I got a bit drunk the other day and discussed the new iPhone 5S and the new fingerprint scanner technology. What we could not agree upon was whether or not one could in fact use my penis to unlock the device?

At first I found the proposition absolutely foul and inappropriate, however, the more I drank the more I realized that this device would be amazingly secure? Having sobered up, I am not quite sure how I feel about my drunken epiphany.

It is possible?