Wait until #3 comes along. They outnumber you 3-2 at that point.
Suddenly I went from being responsible for one child (the older boy) to being responsible for 2 (the older and younger boy) while my wife dealt with the baby (little girl).
Interestingly enough breast feeding a baby isn't a whole lot of work. In fact there was many a time I went to see if all was well, only to find both of them fast asleep.
"I'm going to look after the baby, can you watch the boys?" became my wife's classic line, especially on weekends.
RRrrrrrright.