"Is that a threat?" Tracey teased. Not the most empathic person, she hadn’t realized that Heidi had taken Snape's comment so hard. She wasn't one to tease someone about something that was genuinely hurtful; though she had been known to.
Suspecting something might be bothering Heidi, Tracey was smart enough not to comment further in anything that could be misconstrued as mean spirited. "Professor Slughorn doesn't exactly have delicate hands," Tracey began. "And, from what I can feel, yours are more delicate than his." She smiled at the other girl.
"You just need to condition yourself to be gentler with your wand," Tracey counseled.
"Does that mean you are going to make me an offer to give you a back rub?" Tracey asked softly.