LMAO......this is soo sooo funny.
My DS1 (4) has had erections since birth. Imagine my shock on discovering this after having three girls first!!! AND I had nannied for twin boys for 5 yrs before having my own kiddies, and it never happened with them. I truly thought my boy had something wrong. Not so tho, my HV reassured me completely, and said it is very normal and altho not all boys do, lots will. Stands true for me, as DS2 has absolutely NO interest in his willy.
Funny but uncomfortable story from my DS1 tho...
He is always pulling his willy, and I am constantly telling him not to, as for one, he could make himself sore, and also, does he really want to when there is wee on it. We agreed that if he wanted to play, he could in the bath. Well....one day, he asked to join me in the shower, and I agreed. He then asked if he could play with his willy now, like he would in the bath. I said yes, and the next moment, there he is, great big huge willy, telling me "wow mummy, isn't that great?"...Hmmmmmmm, maybe, but not when your are showering with mummy!!!!
Suffice to say, he doesn't share my shower anymore!!!!