Don't judge!

I'm 29 dating a 48 year old man. I don't know how if I'm ok with it. All I know is that the sex is out of this world & we like each other a lot. I'm worried about things like marriage & children (which I want someday). He already has 2 children (16 & 13) & he's been divorced for about 10 years now. I don't know if it's smart to continue with this guy. What do you think?