they grow up so fast

I was in the car with the boys today and we were just listening to the radio zoning out.  That song "I kissed a girl and I liked it" came on and Jamie says, "Stephi, why is that girl singing about kissing another girl?  Why would two girls kiss each other anyway?"  Yeah, o.k. I had no idea what to say, so I just told him "maybe the song isn't about her, maybe she is singing about someone else."  I surely didn't think that would be a sufficient enough answer, but he took it and starred out the window.   Yeah, next he'll be asking about the birds and the bees.  Needless to say, I turned the radio off because it sucks anyway.