I come over because I know your girlfriend (my best friend) is out shopping, and I want to 'discuss cosplay stuff' with you. Of course that lasts all of about 2 seconds before we start taking our clothes off, about to get hot and heavy. Then your girlfriend suddenly bursts through the door and catches us! To our surprise though, she isn't mad, and actually wants us to carry on. She gives instructions which I go along with, getting more and more turned on, until I beg her to let you cum inside me..