Kids and thong bikinis at a pool party, a bad mix or not?

If you were invited to a pool party but you knew young ladies (or even older ones with body) were going to be sporting bikinis like http://www.youtube.com/watch?v=hQmW4FW2jKg
What is the youngest age you’d bring your kids along? Or if they had bikinis like http://www.youtube.com/watch?v=UQ2YJRR6m74
Would it be better at all? If you would keep your kids at home why would you when they might see less clothes and more something else on cable? If you would do you believe you would have any explaining to them to do or brace them for it?