A moonlight ménage in Versailles. After hearing the Doctor's stories about Madame de Pompadour, the Master convinces Ten to nip back to the 18th century for one last shag. This time, he joins in. Reinette isn't complaining. Hey, two angels for the price of one.
Of course, this has the potential for extreme evilness and angst. I'm sure Ten will regret allowing the Master anywhere near Reinette when the sex starts to get rough.
Thanks to
45eugenia and
versaphile for image beta/assistance.