"Hey, Kurt. Kurt!"
She pulled on his tail to get his attention, but he turned around and snapped, "What, Kitty?"
She pulled back a little, shocked at the sudden harsh attitude, "Uh, I was, like, wondering if you could help me with my AP history homework?"
Kurt glared at her, "No."
With that he teleported away, leaving Kitty to turn to his boyfriend, confused, "What was that about?"
Bobby sighed helplessly, "Kurt's very sensitive about people touching his tail. He told me he's had to put up with a lot of crap concerning his tail. He really hates it when people pull his tail." At Kitty's concerned look, he stood, saying, "I'll make sure Kurt doesn't take it too seriously."
Bobby knew to head straight up to Kurt's room, Kurt's instinct would be to hide from someone pulling his tail. When he got there he laid down on the bed and pulled Kurt close, knowing his furry blue boyfriend would like it.
Gently, he asked, "You okay, Kurt?"
Kurt sighed, "Yeah, I'm fine. I just wish people would stop pulling my tail, they never realize how inappropriate it is."
Bobby nodded, Kurt had explained before that since his tail was so close to his backside pulling on it was a rather intimate act. Plus, Bobby knew from experience that the base of Kurt's tail was a sensitive spot when it came to sex. Kurt sometimes treated it like molestation, made worse by the fact that no one understood that.