As the've asked, can it be a man or just a woman? I have experience with kids, big brother of 3 with 8 and 14 years difference (my little sister is 12 know) and have babysit all ages and I'm a former lifeguard, so I have First Aid knowledge and experience. What age the kids are?
EDIT: Daughter of 7... just re-readed the profile :)
Does the Au Pair need to be a woman or can it be a man? I knew a nude family in Florida with two kids and they had the teen son of a nude couple they knew babysit with their kids all nude of course. It worked. Just wondering. Good luck in the search.