The Doctor let go of Rose for a moment to fumble in his pockets. Taking the opportunity to pull the towel back up from its rather dangerous position, she stared in disbelief as he pulled out a banana from his left pocket. Seeing the expression on her face, he looked vaguely amused.
"What? You said it yourself; there was a banana in my pocket. Bit squished, but it'll do." He peeled the banana and proceeded to take a rather large bite out of it. "What did you think I had in there?" he asked, his mouth full.
"N-nothing…" Rose watched as the Doctor continued eating, her eyes fixed on his mouth. Bastard, she thought as he insisted on doing obscene things to it with his tongue, all the while keeping the innocent look plastered across his face.
"You okay in there?" He waved a hand in front of her face, and she jumped, almost dropping the towel again. Ignoring whatever she was attempting to say, he leaned forward again and pushed a button on the console. Rose shifted uncomfortably. She thought she heard a laugh from behind her, but when the Doctor's face reappeared, he'd disposed of the banana skin and had an 'ok, where were we?' expression on, apparently unaware of how almost-naked she was.
"I don't suppose that was to get rid of the Slitheen in my clothes, was it?"
"No."
Rose could have screamed with impatience. "Get rid of it!"
"Why? We're not going anywhere."
She turned to point at the moving time rotor, but it was still. "What did you press that button for?" The Doctor shrugged. "Where are we then?"
"Sat on top of a comet. So I wouldn't go out there if I were you, not if you don't want to explode or anything."
Rose shot him a filthy look and marched towards the door at the back of the control room. "I'm going to get dressed. And you'd better get rid of that Slitheen before I get there."
The Doctor laughed as the door slammed behind her, waiting for the inevitable scream as he threw the large red towel over the captain's chair.