They accept

"We accept your challenge," Robin declared.

Blackfire raised an eyebrow. "Really? Honestly, I didn't expect that from you, Robin."

Raven glared daggers at Robin. "Thank you for volunteering me, Robin, but I'm not doing this."

"But friend Raven -!"

"No, Starfire! I'm not flying naked into the city because of your sibling rivalry. You can deal with this yourselves."

Raven stormed off to her room. Blackfire gave the remaining Titans a condescending grin. "Sorry, but if she doesn't join, you all forfeit."

Beast Boy looked at his friends before following. "I'll try talking to her."

Robin wanted to advise against that, but the green Titan was already gone. "He better not ruin this."

Blackfire confidently walked out of the room. "I'll be getting ready on the roof. Don't keep me waiting."

Robin suddenly felt unsure about his decision and toyed with his cape. "Uh, Star? Do we actually have to do this? I mean, we are on Earth and..."

He felt soft hands gently turn him around and he came face-to-face with a naked Starfire. This was far from the first time they had seen each other naked, but the circumstances made it feel more awkward. It didn't help that her species had absolutely no taboos towards nudity.

Starfire began removing his costume as she spoke. "Robin, there is no need for nervousness. We will be more than powerful enough to defeat my sister once and for all."

Robin didn't even notice that he was naked until she finished talking. He tried to remember his breathing exercises he learned in training with Batman. He couldn't appear embarrassed or weak. Not in front of his alien girlfriend.

Starfire reached for his mask, but pulled back with a smile. "No. I think that can stay."

She took his hand and led him towards the roof. Robin could only hope this gauntlet would be easy...and that Beast Boy wouldn't screw up.