Yes, but things escalate quickly.

To build up the tension a little, you start back at Starfire's long, athletic legs and rub up them to her ass. You spread her cheeks, seeing her forbidden hole and her pussy more clearly.

You softly open up her pussy lips and blow on the inside, giving her a little pleasure.

"You are most naughty, friend Lancer," Starfire says, looking at you between her legs, "May I have my turn now?"
"In a minute."

You softly rub the inside of her pussy with your finger, teasing her a little more. You probe it with your finger next, entering her pussy with your ring finger.

With your other hand, you find her clitoris and give it a quick rub.

Starfire coos softly and her body shivers as you manipulate her pussy.

"Interesting. Your Alien Physiology appears to be quite similar to that of a Human Female," you say.
"I had always wondered about that. Friend Raven has always been to shy to let me confirm it," Starfire replies.
"Perhaps I could convince her."

You don't expect something like this to work in a million years, but...

"Would you? I would love for you to help me. We could have what you call a 'Threesay.'"

That worked? Holy shit!

"If you think that she's game, sure," you reply.
"Ooh. We could also try it with Jinx. We have her in a Cell downstairs. You decide, friend Lancer!"