A disclaimer. The various chats are not in canon/sync with each other. For instance, in the context of this conversation, BB and Raven have been a couple for a while.

-(-)-

"Goodbye sister from the other Earth!"

"Oh I will miss the you. It is hard being the only Tamaranian on a team of all humans, and whatever Robin is … I believe a wombat."

"Hey!" the shorter boy wonder protested.

The two alien girls giggled at Robin's expense.

"I have observed that you do not have the feelings for your Robin."

"Oh, but I do! He is the brother to me, the small, annoying brother who is lacking in the leadership skills and the dashingness, who has the bad breath, the small hands and is always the angry and the yelling."

The taller girl gave her a curious look. "You say 'the' excessively. How did you learn to speak English?"

"I read a book. How did you learn?"

"I kissed Robin."

"You did the what? Why would you do that?"

"Do Tamaranians in your universe not learn via the lip contact?"

"We can, but we rarely do. Tell me, who else have you kissed?"

"Only a boy in Tokyo, to learn Japanese. I once mentioned to Raven that I was considering kissing Beast Boy so that I could speak to animals, but she said that if I did that I would be a dead woman."

The smaller girl gasped. "Is your Beast Boy the diseased?"

"I do not believe he is."

"So why would your Raven say that?"

"I do not know, humans can be difficult to understand at times. Their use of the 'slang' is most confusing."

"I understand, bigger sister. I also have the hard time understanding the humans. For instance, my Raven is in love with Beast Boy, who is lacking in the redeeming qualities. It is most puzzling."

"Yes, I have noticed that as well. He is, as Cyborg would say, the light bulb with a low wattage number."

"He also smells the bad and drools. I do not understand why Raven would date him. At least your Beast Boy is clean and speaks in the complete sentences."

The taller girl smiled slyly. "Perhaps he is the well endowed."

The smaller girl giggled happily. "Is your Beast Boy well endowed?"

"He is."

The smaller girl's face lit up. "You have done the glerbnark with him?"

"No, I have not. Raven told me one night when I let her try some Tamaranian rum on my birthday."

"It did not kill her? Tamaranian rum is lethal for the humans!"

"Raven is half demon, though the rum made her the very talkative. She told me all about doing the glerbnark with Beast Boy, and how much she enjoys it. Fortunately she had the hangover the next morning and remembered nothing about what she told me. She would have been very embarrassed had she remembered. So do your Raven and Beast Boy engage in the glerbnark?"

The shorter girl shivered. "I do not wish to do the thinking about it. May we change the subject?"

"I understand, please proceed to change."

"Thank you … so, have you met any of the other Robins?"

"There are more, Robins?"

"Why yes, there is the moody one, who gives great massages, the girl Robin and the Robin who wears short shorts and pixie boots."

The taller girl looked aghast. "We have no such thing here. And that sounds very disturbing. Let us change topic again, as I do not wish to discuss this."

"As you wish … so big sister, you and your Robin are doing the dating?"

"Yes, little sister, we are and have been for some time."

"Are you doing the glerbnark with him?"

The taller princess arched an eyebrow as she answered. "That is on a need to know basis."

The smaller princess frowned. Then a smile appeared on her face. "I would do the glerbnark with the Nightwing. He is so the handsome."

The taller princess crossed her arms and looked skeptical. "Have you ever done the glerbnark?"

The smaller girl grinned back. "That is on a need to know basis."

"Touche." The taller girl replied.

"What is the touche?"

"It is a human expression, it comes from the martial art of swordsmanship. It means you scored a point."

"We are keeping the score?"

The taller girl shook her head as she face palmed."Never the mind."

"You said he was the handsome."

"You fainted."

"I did. I also think our Robins were threatened by him."

"Mine was only concerned with finding the Ravens." She huffed.

The shorter girl smiled at her counterpart. "You do love your Robin."

"I do. I hope to someday be his bride. Do you really not love your Robin? I do agree that he is annoying. My Robin said that he thought at first that you and your friends were the baby versions of us, but then saw that you were actually the jerk versions. What I am trying to say is that while he is different, he is also much like my Robin. Just like you and I are different but also the same."

"I know." The smaller princess replied in sad tone.

The taller girl smiled. "I once traveled to the future. There I saw that my Robin became Nightwing. He was most dashing."

"I also traveled to the future, and my Robin will also become Nightwing, though he will be less dashing than yours, as he lived alone in a decrepit apartment. I also learned that he will later marry the Batgirl."

"The Batgirl?"

"Yes, you should be the careful. She might try to steal him from you too."

"Maybe she didn't steal him from you. Maybe it is true that you do not love him and he moved on. Do you really not love him?"

The smaller girl looked up at her twin. "That is on a need to know basis."

"Titans Go! Back to our Earth!" Bobblehead Robin shouted.

The two princesses exchanged a final hug and a moment later the shorter Titans were gone. Starfire stared at where the portal used to be.

"Need to know basis, my posterior." She muttered to herself. "Who does she think she is doing the kidding to?"

-(-)-

In the comics Star is quite open about love and sex, so I thought that's what they should talk about, even if it was out of characters for their cartoon personas. That said, Starfire was very frank about her love life with Nightwing, sometimes embarrassing him in from of the other Titans, in Teen Titans: The Judas Contract.