Well, just to go against the flow here, falling in love with my son (and daughter for that matter, but my son was first) didn't happen with a bang, but with a slow build-up. I wasn't hit with a sudden rush of love, or "fall in love at first sight" or anything like that, I kind of just... well, he kind of grew on me over time smile He's 3 now and I love him to bits, and my daughter too (3 months) but I'm sure she's going to grow on me more and more over time too.
Off topic but how crap is this website?!?! Can't change my profile to show I am male, keeps showing me as not signed in when I am, won't let me add a second child... ugh, terrible.