"Right in here Oswin."
"But... It is bigger on the inside..."
The Doctor smiled to himself. After all those years, he never thought he would have a Dalek as a companion. If there's anything The Doctor has learned, it's that there's definitely a first time for everything.
"doctor. Not only time lords have things that are bigger on the inside." If Oswin were to be in human form, she would surely be smirking.
"Bigger on the inside? Oh no no no, I don't like those words the last time I heard that... What do you mean?What have you done? What do the Daleks know?"
"Oh silly old Doctor. Knows so much about the universe, but can be so naive."
The Doctor's face went pale.
"Oh... Well I've never..."
"Never Doctor? Well, this day is full of firsts."
"I'm just going to go to bed now... Uh... Goodnight Oswin." Oswin followed The Doctor to his bedroom. There was no fooling horny Dalek Oswin.
"Oh, I'll give you a good night!"
Oswin could see the curious look in the Doctor's eyes. She went full throttle.
"Ejaculate! Ejaculate!"
The Doctor was startled but strangely pleased the whole time. He loves learning new things in what one could say a "hands on" way.
The next morning The Doctor was thinking to himself. What had I just done?
"I heard Oswin and my whole brain just went 'What the hell!'"