Toilet Trained

I have given up hope trying to get Lucas to be potty trained. So, I 'graduated' to toilet training. I let him sit on his seat before his bath. He still refused to 'perform'. The minute I take him off the seat, he will 'perform' in his bath tub. I am beginning to think I should just let him take his own time. He understands that I wanted him to pee when he is on his seat but just choose not to do so. Last Sunday, while I was away indulging myself in a mall, Dominic was trying to teach Lucas to pee. Dominic puts Lucas on his seat and this was what happened:

Dominic: Lucas, this is your birdie (point at his body part) and you pee with your birdie.
Lucas: (looked down and saw his balls as well. Looked up at Dominic and said) Egg!

That was hilarious.