Apologies for double posting. My browser always frocks itself and won't let me continue a post.
As for what I'd expect, I'd expect to not have a second child. We have a washing basket in front of our machine everyone's clothes go into. I'd expect if he walks past it and it's full to toss it (minus housemates work socks) into the washing machine and turn it on.
I'd expect he cooks dinner what I ask (I'm very possessive of my kitchen).
I'd expect him to vacuum at least twice a week. And mop once a week.
I'd expect him to tidy up after himself, wipe down benches, clean the bathroom once a week.
I'd also expect a financial contribution.