My wife and I have two sons, ages 25 and 24. We are also raising our nephew, age 3 - we're his legal guardians. (That was a bit of a culture shock: from kids in college to a baby in diapers! Fortunately, raising kids has proven to be like riding a bike; it's amazing how easy it was to fall back into the baby-raising routine.)
No kids for me. Not that I mind kids, in small doses, but lying in bed late on a Saturday morning and knowing that we're the only household in the neighbourhood without kids screaming at their parents is all the argument we need.
We have three cats, though, so it's not all peace and quiet.
I have one that I know of, but the possibility of more does exist, I suppose. They'd have to be older now though because I'm in a long-term relationship.
If you're ever tired of horizontal bopping, just ask her to marry you.