Hubby has a 17 year old daughter who lives 1.5 hours away, but we are otherwise child-free. Since he only sees her a couple times a month, she doesn't really factor into our day-to-day lifestyle. Certainly not to the extent that a poly relationship would require us to tiptoe around her. Plus, she's old enough not to grow attached to a second partner the way a younger child might.
Our decision to be child-free had nothing to do with poly. It's about our overall lifestyle, and the fact that my husband has "been there, done that" with "the whole kids thing." At the end of the day, I really think we're just too selfish to be parents. We want the things we want, and we recognize that having children will make those things very difficult to achieve.
Gralson: my husband (works out of town).
Auto: my girlfriend (lives with her husband Zoffee).
The most dangerous phrase in the English language is "we've always done it this way."