I never heard my parents together, when I was a kid, but once they divorced and my mom started dating I often heard her. Like Cheyanne it never grossed me out, I thought it was natural. Seeing it as being natural I never got turned on my it.

__________________
"Yes I did go to him,
but completely against my will,
and yes he did things to me,
things of which I dream of still,"

-Cowboy Junkies "Black-eyed Man"