If you like Bob Dylan, there is a song called "Lay lady lay", that says exactly these
words; here are the lines:
Stay, lady, stay, stay with your man awhile
Why wait any longer for the world to begin
You can have your cake and eat it too
Why wait any longer for the one you love
When he’s standing in front of you
Of course it is about the pleasure of a man and a woman being together, pleasure which which is renewed every time, so the cake never ends;
in my opinion it is not one of Dylan's best songs, for instance you could compare
with the mixture of feelings in another song, dealing with separation: title: "You are a big girl now", which for me is one of his best songs.