Quite well, she's very open!

"Oh, you wish to know more about me?" Starfire asked, barely containing her excitement. "Of course, what would you like to know? Anything about me specifically, or about my culture?"

"Anything you're happy to share, honestly," Felix smiled.

So Starfire immediately began launching into her life story, how she was Tameranean, a princess on her planet, though currently in exile after her older sister staged a coup, before she came to Earth. She seemed quite excitable. "You're quite... Fervent, aren't you?" Felix asked her, and she nodded.

"Yes. Tameraneans are powerful, and our powers are fueled by our emotions, so it is a big part of our culture to... Have our hearts up our sleeves," she replied.

"...the expression is "wear our hearts on our sleeves,"" Diana chuckled.

"Oh, right! My apologies. I have learned much over years on Earth, but English is not my first language, so I am having many of the difficulties with some... Slang terms, I believe?"

"Oh, no, it's fine," Felix shook his head. He'd talked with enough bilingual people to know that learning a new language left a lot of blind spots.

"You also left out the best part of your culture," Diana grinned at Starfire, who blinked at her in confusion.

"The best part?" she inquired.

"What part is that?" Felix questioned as well, though given how perverted Diana was, he had a guess that it had something to do with some kind of sex ritual.

"The fact that Tameraneans are very sex positive, and their marriages are open, of course!" Diana laughed.

"...eh!?" Felix asked, not having expected something quite THAT interesting.

"Oh, indeed, I have learned that that is a big deal around here," Starfire nodded. "For most of the Earthlings, sex is culturally taboo except in quite specific circumstances. It's all very confusing to me..."

"Hey, at least Nightwing's been receptive to it, after a while at least," Diana grinned. Indeed, while Starfire and Dick were still dating, they had come to an understanding. Just don't give him an STD, and send him any videos involving lesbian sex, and Starfire could sleep with whoever she wanted. It had taken some time ant talking things over to get to that point, but Dick thankfully had an open mind regarding her culture, and learned to live with some aspects of it he hadn't been comfortable with at first. Starfire of course, didn't go out of her way to sleep with others, but didn't pass up opportunities that caught her interest.

"Am I to presume you are both interested in me?" Starfire asked, completely unabashed as Felix blushed a bit.