Every porn seems to have a great "oh" face, which of course is perfect for filling in your own words for a little body swap caption.. Let's try some
"Hey! I haven't cum yet, why did you switch us already?!", he said.
"Because it's my turn to have a male orgasm, now shut up before I stick this huge cock in your ass!" she said.
"Hey! I'm supposed to taking the nurse's temperature, not you!", he said.
"Your cock feels so good, I wanted to feel it from this side"