This is perhaps the easiest home for me to play as far as Don is concerned because he is punished with alien pregnancy for each Sim he WooHoos. This does not mean that I will withhold WooHoo from him, it just means he usually has lots of green children.
The suggested method of play as per the Prima guide is to invite Nina over, WooHoo her, send her home. Then invite Dina over, get her to fall in love with Don, and then WooHoo her. Somewhere in there you are supposed to hire a maid, but you have to be careful because Don has already WooHooed one of them.
The linked post is how the first day at Don's home always goes for me. 25 pictures on the linked page.