Jin had been absorbed in eavesdropping as much as Bastian had. Up until the image of Vader appeared on the holo. Sudden, overwhelming pain crackled over her scalp, like her horns had been tied with metal and zapped. This came with a wave of nausea, but Jin knew that was just pure cowardice. Meditation came over her like a reflex - [i]My ally is the Force, I know no fear. My balm is the Force, I know no pain [/i] - but it wouldn't go away. 

She was going to be sick. The rebellion of her stomach continued, threatening a resurgence of breakfast. 

But then she heard a beskar muffled yelp, and saw Bastian being lifted into the air by the Wookie. Everything was suddenly crystalline. She was on her feet and moving and yelling. Pain, fear, all else gone, except for the need to protect. 

"You let him go, you mangy jerk!" Chewbacca would feel the mildest thump of impact as seven small horns hit him.