They stood in Ten-Forward, decorating the room for Alina's belated birthday party.

"Why do you never celebrate your birthday?" asked Katrin her older sister.

"I see no need for it as I will have an infinite number of them," Rina replied.

"But you will do the number?"

Rina sighed and rolled her eyes. "Yes, because Ali wants to celebrate and this is her favorite song. I need your help with my hair and make-up."

"Sure, no big deal, but maybe you should go to Mot."

Rina gave a lopsided grin. "You're right."

Dr. Crusher entered. "Hi. I have bad news. Ensign Mathews is sick. He won't be able to play."

"Damn! Where do we get a new saxophonist?"

Data cleared his throat. "I can do it."

Rina smiled at him. "Since when do you play saxophone?"

"I do not but I can learn it in a few minutes."

"You'd do that?"

He nodded which earned him a hug from both women.

"Thanks, I'll send you the video and the notes. Could you come to my room half an hour before the party starts so that we can practice together?"

"I will be there."

In the early afternoon he ran into her in the hallway. She wore a tracksuit and her hair was stuffed into a cap.

"Sorry Data. Are you ok?"

"Yes, are you?"

She nodded.

"What is your destination?"

"Sickbay."

"Are you ill?" he asked worriedly.

Rina laughed and shook her head. "No, I'm well. I just need Dr. Crusher help for today's outfit."

He frowned but she interrupted him before he could ask. "You'll see. See you later."

At 14:30 he rang the chime, saxophone in hand. He had changed into a white suit and a black T-shirt.

"Come in." Was that a lisp?

He entered and saw Katrin with a tube of mascara in her hand working on Rina. At least he thought it was Rina. She turned her head. Yes, this was Rina. These ice-blue eyes were unmistakably hers.

On her upper eyelid was purple eye shadow; on the lower was a blue line. Her lashes were black, long and curled slightly on the ends. She had applied dark-pink lipstick. Her neon-pink long-sleeved shirt left her shoulders bare and ended only a bit underneath her breasts. The neon-green skirt, the same color as the belt, began at her ribcage and gave a great view of her thighs. She wore two different shoes, the left one was yellow and the right one pink. Half of her right forearm was clad in colorful bracelets. Triangular earrings in pink and yellow hung from her ears.

But the biggest change was her hair. The usually blond, straight strands were now frizzy, dark brown curls.

"Hi Data." She smiled and he saw the braces in her mouth.

"Turn your face back to me. Look up." Katrin did a few last brushes then put the mascara away. "Finished. I'll see you later, sis, Data." Katrin left.

Rina stood up. "Shall we start?"

He nodded and she began to sing.

The room was dark. She led him to a bunch of pillows on the middle of the stage and they lay down.

"Just pretend to be asleep 'till 'damn'. Then stand up and go to your position."

He nodded that he had understood and closed his eyes. He heard her adjusting the microphone on her ear, this way she would have both hands free.

She tapped it. "Can you hear me?"

Murmurs roused – positive.

"Alright, ladies and gentlemen. We're here today to celebrate the birthday of Lt. Alina Meunier, my beloved twin-sister. For this event we have prepared this song from her, our youth. Enjoy it, sister dear!"

She gave the band the sign and they began to play.

The lights went on and Rina sat up. Data supposed she would make the same grimaces and moves as earlier.

"There's a stranger in my bed, *She looked around and*
There's a pounding my head *put her hand on her temple.*
Glitter all over the room
Pink flamingos in the pool
I smell like a minibar *She tugged at her shirt's collar and sniffed, making a face of disgust.*
DJ's passed out in the yard
Barbie's on the barbeque
There's a hickey or a bruise *She tilted her head and pointed at a spot on her neck.*

Pictures of last night
Ended up online
I'm screwed *She made a slightly guilty face*
Oh well *then shrugged.*
It's a blacked out blur
But I'm pretty sure it ruled *She made the rock'n roll sign with her hand*

Damn *and jumped up, he stood up and went to his saxophone.*

Last Friday night
Yeah we danced on tabletops *She began to dance.*
And we took too many shorts *She scooped up a paper cup.*
Think we kissed but I forgot *She kissed the air and shrugged with a lopsided, apologetic grin.*
Last Friday night
Yeah we maxed our credit cards
And got kicked out of the bar
So we hit the boulevard
Last Friday night
We went streaking in the park
Skinny dipping in the dark
Then had a ménage à trois *She winked.*

Last Friday night
Yeah I think we broke the law
Always say we're gonna stop-op
Whoa-oh-oah
This Friday night
Do it all again
This Friday night
Do it all again *She grinned.*

Trying to connect the dots *She pretended to think about something.*
Don't know what to tell my boss
Think the city towed the car
Chandelier is on the floor *She looked down.*
With my favorite party dress
Warrants out for my arrest
Think I need a ginger ale
That was such an epic fail

Pictures of last night
Ended up online
I'm screwed
Oh well
It's a blacked out blur
But I'm pretty sure it ruled
Damn

Last Friday night
Yeah we danced on table tops
And we took too many shorts

Think we kissed but I forgot
Last Friday night
Yeah we maxed our credits card
And got kicked out of the bars
So we hit the boulevards
Last Friday night
We went streaking in the park
Skinny dipping in the dark
Then had a ménage à trois
Yeah I think we broke the law
Always say we're gonna stop-op
Oh whoa oh
This Friday night
Do it all again
Do it all again
This Friday night
Do it all again
Do it all again
This Friday night" *She signaled the audience to speak up.*

"T.G.I.F.
T.G.I.F.
T.G.I.F.
T.G.I.F.
T.G.I.F.
T.G.I.F." *She gave Data the sign and he began to imitate the man in the video.*

"Last Friday night
Yeah we danced on table tops
And we took too many shorts
Think we kissed but I forgot
Last Friday night
Yeah we maxed our credit cards
And got kicked out of the bar
So we hit the boulevard
Last Friday night
We went streaking in the park
Skinny dipping in the dark
Then had a ménage à trois
Last Friday night
Yeah I think we broke the law

Always say we're gonna stop
Oh-whoa-oh
This Friday night
Do it all again"

She stood with a wide grin and outstretched arms in the front of the stage.

There was loud applause and Alina came up and hugged her sister and the members of the band.

"Merde!"

He stepped into her bathroom to see Rina desperately trying to put her hair back to normal.

She had already taken a shower and removed the make-up. She was back in the tracksuit. Her hair was wet but still frizzy and brown.

"May I?" he took the shampoo bottle and started to massage some into her hair. When he washed it out, the water became clear again. He took a towel and dried her soaked hair.

After he was finished with combing it she looked up at him.

"Better?"

"Much better. Thanks."

"No problem."

Song & Outfit: Katy Perry - Last Friday Night