i once asked a provider which erogenous zone was her best..she replied 'my emotions'..food for thought for us older gents..

The brain is the sexiest organ there is.

However, I've had luck with the following:

Feet, the nape, and very, very gently nibbling or blowing on her ears.

Each gal is different so experiment and ask what she likes.

Oh definitely ask, some of us have spots that we don't want touched...lol..my ears are not an errogenous zone.