Breast feeding other babies

So I was breast feeding my niece cause we wanted to see if she will latch and it was the funniest thing because I have really​ leaky breast with over production so it shoots out and she was sucking than letting go and taking a deep breath and going back to drinking than they put my son on my boob at the same time and he was just chomping on my boob taking in the whole thing it was really funny to us but my son is a strong eater