I've not read though everyone's stories, we all have our reasons for being complete, i feel for those that are complete but don't want to be
We have two beautiful daughters, We have only ever been in a relationship with each other and still madly in love (15 years since we were 16) I think we're complete....
I would like to say never say never but right now we live a comfortable life, we both work part time earning decent wage, we get equal time with our children. Have two cars, average size home and generally are very happy with little stress.
IF we had another child, we would need a bigger car, our girls would have to share a bedroom and they aren't big enough for two, moving would mean changing our work pattern working full time to pay of a big mortgage and doing the whole baby thing again. Anothee child would unbalance the lifestyle (though if it happened we would of course go with the flow. DD2 still breastfed and I've always said she will decide for her but don't fancy it again. She also doesn't sleep all night at 2.
Whilst the thought of never doing it again saddens me somewhat, I am looking forward to our family adventures now we have two children and don't have to worry so much about naps, sleep, pushchairs etc.