We were down in the lobby waiting for Nikki to finish getting ready. Dad was getting impatient so he sent me back up to the room to find out what was taking so long and to hurry her along. I wasn't expecting her to still be in just her underwear! I tried to advert my eyes but couldn't help myself. Then Nikki noticed my erection in my shorts and demanded to know what was up. From there it was a blur as my shorts came off, she was naked, had my cock in her mouth then fucking her in the window before cumming in her pussy then watching it run out all over the bed!