Author's Note: Getting really close to the end, guys! I'm almost sad to see it's over, but I'm glad you all have been enjoying it! Here's chapter 13! This is basically a rewrite of the episode Sisters. As a side note, when Starfire and Blackfire are speaking Tamaranean it'll be italicized. English will be regular font.

DISCLAIMER: 13 chapters later, still don't own Teen Titans

Chapter 13

The next day, my friends and I stood on the roof of Titans Tower, awaiting my sister's arrival. My uniform has changed slightly since I first started fighting crime. I convinced Robin to let me go without a mask as long as I restyled my hair and stopped filling in my eyebrows. It was an argument won with puppy dog eyes and convincing him the mask interfered with my powers. Finally, after an hour, a figure dressed in black and silver lands on our roof.

"Ugh, please tell me this is the right tower! I landed on a similar one in Steele City about an hour ago and I did NOT receive a warm welcome!"

"I'll be sure to talk to Bumblebee about that later, but right now, sister it is so good to see you!"

I run to hug my sister and she gives me a small smile.

"Good to see you too K- Starfire. You haven't changed a bit."

"I should hope I haven't. It hasn't been that long since you last saw me. Let me introduce you to the rest of the Titans."

"Oh, I can introduce myself."

She walks over to my friends, swaying her hips more than necessary. Ever since my sister first left for Tamaran, she's changed and not for the better. She kinda makes me think of the witch from the Little Mermaid now. She extends her hand to Cyborg.

"I'm Blackfire."

"Pleased to meet you little lady, I'm Cyborg."

She proceeds to crush Cyborg's hand.

"Little lady, BIG handshake."

Raven simply states her name.

"I like that gemstone on your ajna chakra."

"You know about chakras?"

"I got way into meditation on Altara Prime."

Beast Boy manages to stammer out his name.

"What's up?"

"Nothin' but the ceiling baby!"

The rest of us groan but my sister actually laughs. Usually I'm the one to give Beast Boy a pity laugh.

"And I'm Robin."

"Ooh, that mask makes you look so mysterious. And your cape is positively luscious!"

Blackfire reaches out to touch Robin and I grab her wrist.

"Robin does not really like to be touched."

I'm shocked by the coldness of my words, and so are the rest of my friends. My sister merely chuckles at my attempt to intimidate her.

"Right… Sorry. So do you lead this team, little sister?"

I release her wrist and relax slightly.

"No, I am second in command. Robin is our leading because he has the most crime fighting experience."

"Ooh, I love a man with… experience."

My sister purrs the word experience and I glare at her. I feel Robin wrap his arm around my waist.

"You and your sister have similar tastes."

Blackfire blinks in confusion a few times then regains her composure.

"Oh, right. Sorry."

She chuckles softly then speaks to me in Tamaranean.

"Has he imprinted on you yet?"

I gasp and blush furiously. She explained to me previously that imprinting is the act of devirginizing a female. Sounds pretty basic, but on Tamaran, sex demands commitment. When a couple mates, they are basically considered engaged and MUST someday get married. If either party breaks this commitment the punishment could be to be publicly stoned or hung.

"NO! I haven't explained to him what sex means to our people! And even though we are in love, I am not ready for such a physical commitment!"

My sister shrugs.

"Suit yourself. So, can I come inside, or what?"

"Sure, living room is this way."

On the way down, I tell my sister that there is a sixth member of our team who is out for the day. She grins when she sees the living room.

"Wow, nice place you got here. Oh, and I almost forgot. I brought you a present, little sis."

She pulls out a necklace with a single, beautiful green gem on it. It looked like an emerald, but I wasn't sure if it was an emerald.

"It's beautiful! I love it!"

"Good. It's a Centauri Moon Diamond. Let me put it on you. Look at that, it matches your eyes."

I hug my sister tightly.

"Oh, thank you so much!"

"Anything for you K- Starfire. Ugh. How long do I have to call you by your codename?"

"Sorry. Sundays are our no uniform days. We try to practice addressing ourselves and each other by our hero names when we are dressed like heroes."

"Right… Is it cool if I nap on the couch? I am beat."

"Sure, go right ahead. It should be fairly quiet now that the breakfast battle is over. As long as the alarm doesn't go off."

"Great. Wake me up in a few hours."

With that we all head in different directions. I notice Robin is following me.

"Starfire, can we talk privately?"

"Of course Robin. Is my room private enough?"

He nods and the door to my room slides open, revealing the pink and purple world I had created inside. We sit next to each other on my bed and he places his hand over mine.

"Starfire, are you sure you're okay with your sister staying here for a few days? I mean, someone could've cut the tension between you two with a knife."

"I know, and I'm fine. I love my sister, but…"

"You know you can tell me anything Starfire."

"But ever since she went to Tamaran, she's changed. A lot. It's like she's bloated with power or something and it bothers me."

Robin wraps an arm around me and I rest my head on his shoulder.

"Do you think you should try talking to your sister?"

"Robin, you met her. Does she seem like a heart to heart kind of person?"

He thinks about it for a moment.

"No, you're right, that wouldn't work. Well, she does have to go back to Tamaran soon, so just tough it out."

"It bothers me that she flirted with you."

He chuckles and kisses my forehead.

"Well don't let it bother you. I choose you, and I love you. You have nothing to worry about. I can stave off her advances."

I smile and kiss his cheek.

"I love you too. And you're right. I won't let her bother me."

"Good. Now what were you two talking about in Tamaranean?"

I sigh. I should've seen this coming.

"She was asking about our sex life."

Robin goes wide eyed and blushes.

"Oh… Uh…"

"You don't need to be embarrassed. There's actually something I need to tell you about sex and my people."

"Should I be scared?"

"A little bit. You see, on Tamaran when a male takes a female's virginity, he imprints on her. What this means is the couple is bonded for life, and this bond is next to impossible to break. If either party breaks the bond, they are sentenced to be publicly stoned or hung."

Robin's eyes widen under his mask and his jaw drops. After a few minutes, he regains his composure.

"So… If we have sex… It means we have to stay together forever?"

I nod and he takes a deep breath.

"Then we need to wait until we're sure we're ready."

"And I'm not sure I'm ready to make that kind of physical commitment."

"Then it's settled. We keep waiting."

I smile and kiss him softly.

"You are the most patient, understanding boyfriend a girl could ask for."

"Hey, you're pretty patient with me and my obsession with Slade, the least I can do is respect the traditions of your people."

I kiss him again and we spend the rest of the day cuddling and talking.

I can't take credit for that imprinting idea. I got it from Arabian-Princess1001's story Code of Bloodlines. Go check it out, the relationship between Blackfire and Starfire she portrays is kind of what sparked the inspiration for this fic. Anyway, next chapter, the rest of Blackfire's visit and the epic climax! Until then, R&R, my lovelies! But don't leave anonymous reviews that sound vaguely threatening based off something that HASN'T EVEN HAPPENED. Got one of those yesterday, just so you know, it's not fun. -Starprincess