Help...this sounds fishy!

Okay, so I registered at this site called new au pair, etc. All was well until I got contacted by a family. A single mother from Switzerland.
this is what she said:

Hello there!
I don't know if you have ever been to Switzerland but we live in the Bernerland which is in the center of the mountains. Nearby wintersport areas like Interlaken, Brienz (where they shot episode 10 of the serie Band of Brothers).
I think you have already seen the pic of the view from here?
Sometimes people say we live in heaven here, cause it's all so peaceful and beautiful., i think i'm pretty lucky to be born here.
If you like wintersports, this area is the best, you can go snowboarding or do whatever you like, you can be assured of a white christmas.
Summers are hot, and we are living close to a big lake (Thunersee), where you can do watersports, swim, or just chill at the beach, at home we have a pool.
So in case of doing sports you are at the right place.
(---) is a cute and easy to handle girl, she loves to kuddle and to play, you will be a big sister for her and not just someone that comes over to work. I want you to be a part of our family.
What do you think of this part what i wrote on my profile?
"You really need to be open-minded cause of nudism, and ofcourse it is ok if it's new to you, but to avoid any embarrassing situation, you must be comfortable for living with us like that.
We want you to be a part of our little family."
Ofcourse i will pay you very well if you are that open-minded girl!
I can pay weekly or monthly, what you prefer and ofcourse i will offer you extras besides the normal salary. You can get all you want, as for me you are like a daugther/friend that needs to enjoy every day with us.
At the house you will have your own room with everything you need. You will have internet, bluray/dvd, large tv, bed, closet and in case you have other wishes we can surely fix that and buy the stuff.
Any wishes so far? Don't feel shy to ask for things, i will get it all.
As for the lenght of stay, i don't know what your idea was?
For me it can be as long as you want to.
Could this be something for you?

Once we discussed that I was not uncomfortable with people being nude around me, i figured we were moving on...BUT she keeps going back to the same thing:

So you have never been naked in front of other people or kids?
have you seen little girls like (---) naked?
Do you want to discover how it is to be naked yourself with other people around? (---- and me)
ofcourse i will also give you a good pay when you are that open

I realize this is a scammers website and this could turn out to be a little something more serious...but honestly I didn't know where else I could get help with this.

I'm sorry to say that a lot of au pair sites are loaded top to bottom with scammers and you may never get a genuine offer of work for a very long time.

As you notice this one is obviously a scammer and rather a strange one too. The scammer has done some research on local geography but nothing on the requirements for working as an au pair in Switzerland.

He's clueless and he won't get any victims, we're happy to say, with that particular line.

We have had similar cases where real families, or single men, were asking for an au pair for dubious reasons. They were real people however, but wether they were honest about their reasons to want an au pair was not clear, even doubtfull. This woman from Switzerland is not likely to be a scammer as they don't write emails like this. It seems that this family is a nudist family and this woman is making that clear to you, which is a good thing. If you are not comfortable with being an au pair for a nudist family, who could ask, even demand from you to be naked with them too, then don't become an au pair for them. If you are comfortable with nudism, think very carefully about it. Are they telling you everything? What do you know about them? What is your impression of them?

Be very carefull.