Potty Time

I don't even know where to begin! I thought I had read enough about potty training and got as many tips that I needed. But, Noah just doesn't care! I have heard that boys are harder to potty train, but seriously, being wet doesn't even phase the boy! He can just be sitting playing with his toys, pee, and then not care. He'll just sit there until I find that he is wet. I've tried Pull-Ups, what a joke! He just thinks he has a diaper on. So, no luck there. I've tried letting him go commando, nope, no luck. I've tried just letting him wear underwear so he knows how it feels when he's wet, nope. No luck. And I've even tried setting the timer and having him sit on the potty for 20 minutes every half hour, and giving him LOTS to drink in the meantime. But, you guessed it, no such luck! He could probably sit in a wet diaper for days and not even care. (No, I don't do that, I promise!) He doesn't care if there is a chart that has pictures of toys that he could get if he goes potty on the big boy potty. He's just content with what he has! Macie is more interested in the potty than Noah. And she's 22 months younger! She's gone on the potty 3 times, on her own. But then she sees Noah not going on the potty, and then thinks that it's okay! I swear, I'm going to have kindergartners still in diapers! Any ideas?