Where is mummy's winkie?

[blanki]

Ds is 2 1/2, he thinks that using the toilet/potty and showering/bathing are spectator sports. I'm sure this is not uncommon and its fine. BUT I was a little lost for words when I stepped out the shower and he was most alarmed because mummys winkie was lost! Was that ok for him to think, or should I be telling him something more intelligent at this age? Its just him and I and don't really want to hide from him, although I don't parade around naked!Any advice on that difficult journey please?
Also, sorry!, what is it pc to call our bits and farts?

My ds1 was almost cross when he realised I didn't have a winkie. I think he thought I had carelessly lost it, and deserved to be berated for this.

Oh I can't use vulva with a small child- sorry but it sounds ridiculous to me (and am ex Biology teacher so no fear about teaching this sort of stuff without embarrassment). Makes me shiver as I say it. I have come across so many 18 and 19 year old boys (via teaching Bio A level retakes) who think that women wee out of their vaginas that we use front middle and back bottoms (I wouldn't quite introduce the idea of a middle bottom to a 2 year old though!) . It was something I had to use when teaching for some of the boys to understand as they were very confused. (They couldn't understand how you could wee with a tampon in etc and obviously had never found anyone to ask before). DS3 (2) just doesn't believe I don't have a willy - with 3 boys plus dh there are just too many around in this house.

I was told off by a 5 year old for calling farts farts, she said they are "puffpuff", well I don't know the exact word, I still call them "farts"
My sister when she was 3 or 4(she is now 33) asked for a willie for Christmas, as it was easier to pee. She was devastated when Santa didn't bring what she wanted. I still remind her of that