She is convinced to keep going.

"If the situation was reversed and I needed a place to stay, would you have taken me in," Raven asks you directly.
"Of course."
"Why? Is it just my big tits?"
"Not at all," you reply, "They look quite nice from here though.
No, it's because you are brave, strong, powerful and protective of everyone around you. You showed up here to see your friend, not even worrying about the risk that might be involved."

She smiles softly and moves her hand away.

Starfire happily pulls down the straps and reveals Raven's big, juicy tits.

She glances at Starfire, who smiles.
She glances at you. You lick your lips.

Starfire cups her friend's tits and kisses them all over.
She glances at you and smiles in a sly manner.

"Tits this big and lovely need to be right...here."

She presses her face into Raven's cleavage, catching her happily off-guard.
The heroine smiles and holds the back of her head for a moment, before letting her breathe (presuming that the Bot breathes).

"If you play your cards right, you'll get a turn too," Raven says, reading your expression, "Just be-ooh- a good, silent observer for n-now."

She's distracted at the end as Starfire sucks on her nipples, pleasuring her quite a bit.

While her mouth works, a horny 'Starfire' keeps going with the stripping and pulls the garment down to her friend's hips.
Raven freezes again...before nodding and standing up.

Starfire gives her tits one last kiss- for now- and goes down to remove the remainder of Raven's clothes- save for her shoes.

Standing naked in front you, Raven looks nervous and glances in your direction.