Trying to find a song from the 70' s or 80's

[kujo]

I am trying with few details to figure out a song from way back. It is a female singer and she is driving in the rain and picks up a hitchhiker and they end up making love and she never sees him again but has his child that looks just like him.

[Suzyboo]

All I Wanna Do - Heart

http://www.youtube.com/watch?vDwowjMQ5mh8

All I Wanna Do - Heart