Older woman?

I was informed by a mother of a 4 year old at Gavin's school that her daughter, Ashtyn, was Gavin's girlfriend. I decided I needed to get to the bottom of this so Gavin and I had a conversation when I picked him up that went like this:

M: Do you have a girlfriend?
G: Well yeah...
M: Who is it?
G: Ashtyn
M: Do you know what a girlfriend is or does?
G: No
M: Well then how do you know she's your girlfriend?
G: Because she told me...

I don't know about you but I think that 4 year old will be president some day...just tell those boys what you want and they will do it!