In the beginning of Pretty Woman when Julia Roberts is watching "I Love Lucy" and Richard Gere was looking at her she goes over to him and undoes his shirt and kisses his chest and stuff. Then it shows his face and his shirt is still buttoned and his tie is still on.
I'm the absolute biggest Julia Roberts/Richard Gere fan there is. And I've seen that movie more times then I can count. She unbuttons his shirt and it stays that way through the whole scene.