Yes, but she's set up for failure.

"...Raven. I'd know that tongue anywhere," Starfire says.

"Damn," you say, pretending to be upset, "She's good."

"I do lick that pussy alot. Let's see if she does as well the second time," Raven says.

She pulls out a dildo hidden on a pocket inside of her cloak. It's a long, pink one with some ridges on the side. She leans in close to Lancer and explains how she normally uses it on Starfire.

Lancer nods and takes the pink object. They circle her again, attempting to disrupt her sense of where they were earlier. He moves around the side and slowly pushes the dildo into her Tamaranian pussy.

He slowly fucks her with it, picking up speed as the seconds turn into minutes. Starfire moans noticeably at his ministrations.

After five minutes, he stops and returns to the front of the bed alongside Raven.

"Let's see if you get as lucky this time," Lancer says, "Did I fuck you?"

"Or did I," Raven says.

"...I think it was friend Lancer," Starfire says, "He didn't quite do it like you do."

"Clever girl. One more success and you're free."

"True. Care to raise the stakes," Lancer asks.

"What did you have in mind?"

"If you get one more success, we will untie you- as promised- and you can tie one or both of us up."

"But if you guess wrong," Raven adds, "We can keep you tied up and do whatever we want to you for the next hour."

"Deal," Starfire says in a jovial tone.

You and Raven smile. The trap was baited perfectly! Now to have some real fun.

You go over to a box near Starfire's door and pull out a bag left there about an hour ago. You pull out a strap-on that has been magically-enhanced. How?

It looks and feels exactly like Lancer's cock. It even has the same warmth to it and simulates internal movement. That Raven sure is sneaky.

You help Raven put it on- as she abandons her cloak in order to give nothing away- and approach Starfire together. To enhance the trick, you grab her legs and pull her to the edge of the bed.

Raven quickly trades places with you and shoves the 'cock' into that Tamaranian pussy! You stand behind her, returning your hands to her legs and hold them in place.

You and Raven thrust into her in unison, your still-clothed cock rubbing against her ass nicely. It's a little bonus for her.

You begin to moan in the same way you normally would when fucking a girl to make the illusion even greater.

Five minutes or so later (you lost track of time a bit), you and Raven pull out and move back to the front of the bed. You do it separately, just to help trick the alien girl's sense of hearing.

"Moment of truth time," you say, "Who was it? Was it me?"

"Or was it me," Raven says.

"It had to have been Lancer, but...it may have been a strap-on," Starfire says, "It didn't feel like one. Hmm...I'm going to say that it was..."