The Doctor ran ahead of Jenny and Donna, trying to get away from the Messaline soldiers chasing them. Normally the Doctor would've enjoyed all the running, especially since it was going to help him get to Martha faster. There was just one problem.. he REALLY needed the loo. At this point, he had no choice but to run while squeezing his thighs together. After a while, it caught the attention of Jenny.

"Does he always run like that?" she asked Donna.

Donna looked at the Doctor and noticed he was squeezing his thighs together. She wasn't blind, she knew what that meant. She made a mental note to remind the Doctor NOT TO PUT THAT OFF!

"Not usually," she answered.

"What does that mean? Why's he running like that?" Jenny asked.

Donna smiled at her obliviousness.

"Nothing. Just a Time Lord thing,"

"Is it dangerous?" Jenny asked, now a bit worried.

"No. Just uncomfortable. You'll understand soon enough."

They rounded a corner and stopped for breath(and clenching of muscles, in the Doctor's case).

"You alright? Need me to find a detour?" Donna asked him.

The Doctor blushed. It was an attempt at discretion that made him need to run ahead of them.

"No, I'll be fine. Soon as I can refocus to what if thinking before," he replied, slightly worried. "Oh! Right! The signs!" the Doctor yelped and was immediately distracted.

"Only because we're being chased by soldiers," Donna quipped offhandedly in warning.

The Doctor smiled and nodded in agreement before resuming his train of thought.

On the way back to the TARDIS, Donna saw a sign to the toilet and pointed it out to the Doctor.

"Oh, Fantastic! Brilliant! Thanks, Donna, back in two ticks," said the Doctor, pushing the button to open the door and walking through.

Martha approached, asking where the Doctor went.

"Just popped to the loo" Donna clarified.

The Doctor emerged a few minutes later.

"Feel better?" Donna asked.

"Much better," he replied with a smile.

"Good for you. When you've gotta go, you've gotta go!" Martha added, with a chuckle.

"Don't I know it," replied the Doctor, before blushing, coughing awkwardly and changing the subject to the adventure in the Ood-sphere. Donna smiled at the thought of using his tangent to tell Martha what happened, so it doesn't repeat itself. Again.. but she let him off. At least, until they got to the TARDIS...

"By the way, Martha, speaking of the Ood Sphere, I learned some quite INTERESTING information about the Doctor there," Donna started, with the Doctor instantly protesting with his eyes.

Donna continued: "See, the Doctor needed the loo at the Ood factory, and after, it turns it he was supposed to go in the TARDIS since it had been three days, but he chose not to, out of excitement." At this point, Martha smiled in understanding. She was a Doctor, and that did seem like him.

"I told him not to do that, obviously to avoid him getting an infection, but you know what? The Ood Sphere was three AND a half days ago." Donna revealed semi-accusingly.

"Doctor?" Martha asked the Doctor, expecting an explanation.

He blushed. "You were there," he answered, indicating Martha.

"I'm a Doctor," she countered.

"I know, it's not that. You're not Donna," he explained, trying his best to say it nicely. Martha could understand that.

"Alright. But that's the only excuse you get, alright? She may not be a Doctor, but she knows what she's talking about." Martha warned.

"Yes, Martha." the Doctor said with a smile, agreeing with her. After which he said "Now," and changed the subject to taking Martha back and where he'd take Donna next, pulling the lever exclaiming his trademark "Allons-y!".