Disclamer: I don't own Doctor Who and no money is made off of this; it's just for fun. I also don't own Red Dwarf or Star Trek.

Characters/Pairing: Sally/Larry, 10th Doctor

Genres: General

Rating: K

A/N: I don't know anything about Star Trek, so all info is from the Internet, mainly Wikipedia. Blame them if I've got something wrong. :)

Three lone figures strolled casually along Brighton Pier. "I never really got a chance to say thank you, properly," The Doctor said. "So thank you, Sally Sparrow."

"Larry helped too," Sally defended.

Larry smiled. "I brought the DVD player," he said. He knew he hadn't done much, but Sally would protest otherwise till the end of time.

"I couldn't have done it without him," she continued. "And you're welcome, Doctor." Larry could tell Sally had more questions, and truthfully, so did he. But neither would get to ask at the moment, since they were interrupted by a singing coming from across the water. He looked up and saw that there were three women sitting on the large rocks a few meters out. The women were singing some...ancient...haunting...song...

Larry couldn't think. He should–something. Shout–Sally. Help–Sally. But his brain wouldn't follow through, couldn't even complete his half-thoughts. He could only stand there, while that music filled his head, slowly took over every conscious thought. One word reached his ears. Run. It was–who? Run. The word came again, but Larry couldn't remember what it meant. Finally on the third try, the spell was broken. RUN. Sally's hand was in his, the Doctor's words ringing in his ears, and they were running. Away from the pier, back to the beach, all the way back to their hotel. Away from the water, away from the singing women.

"What the hell just happened?" Larry managed at last, when they were safe inside. "It was like, that song, it was in my head."

"Yeah," Sally joined in, "It was...I don't know, pulling everything else out of my mind."

"Sirens," the Doctor said at last. He was leaning against the wall, his head tilted back and arms folded across his chest.

"What, Psirens, like...Red Dwarf?" This was from Larry.

"More like...The Odyssey?" Sally teased him for his mind going straight to science fiction.

"Oh," Larry smiled sheepishly, "Right. The Sirens and Greek Mythology and all that."

"Right," the Doctor agreed. "See, all stories start somewhere. The La'ameras, what you know as Sirens, crash landed on Earth hundreds of years ago. Went terrorizing, well, Greece, apparently. Then they just disappeared. No trace. It would appear they've fallen through time and landed here."

"That happen often?" Sally asked.

"Well, just lately. Since the reality bomb-"

"The what?"

"Planets in the sky, Daleks exterminating people. Anyway, since then, the walls of the universe have been weakened, stuff gets though the cracks. I've been cleaning up these messes for months. Just before here, I came from the year 1851. Found an army of Cybermen in the Victorian age. Can you imagine?"

Sally just shook her head, obviously more concerned with the current problem, "What I don't understand is, how could those Sirens, or whatever you called them, get inside our heads like that?"

"They form a psychic link with their...prey. Through that song. Gives them a certain amount of control over the brain. That's why it was so hard for you two to run, even when you knew you should. And, while we were standing there, they were feeding off of our brain wave energy. When they're done, they use the psychic link to make their prey throw themselves into the water. Easy cleanup. Their control wasn't as strong for me, but still...I've never seen La'ameras so vicious." He scratched his head, thinking. "Question is, what do we do next?"

Larry spoke up, "Where's your ship? Your TARDIS? You must have weapons. A–a pulse cannon, or plasma guns, or, uh, photon torpedoes, or...or...what?" Larry faltered as the Doctor stared at him, nonplussed.

"Photon torpedoes?"

Larry shrugged, "Star Trek."

"Right...well, no. No pulse cannons. No photon torpedoes."

Sally looked amused, but her face sobered quickly. "Well, what do we do?"

"I've got to talk to them; see what they want, where their ship is. Maybe I can send them back home. But, how do you talk to someone who steals your thoughts the instant you get near them?" The Doctor walked towards the door. "First things first, let's head to the TARDIS. C'mon, allons-y! And, er," he added, grinning at Larry, "chaw' maH jaH!"

Sally and Larry stood and followed the Doctor. "Allons-y?" Larry whispered.

"It's French, for let's go," Sally replied in the same hushed tone. "What's cha–cha ma ja?"

"Chaw' maH jaH. Klingon." Larry took Sally's hand as he answered. Sally nodded knowingly, hiding a smirk by burying her head in his arm.