Kol was more than amused to find out that little Diana knew his big brother. Small world? He chuckled at the thought. Klaus and Kol were two totally different people. Kol was reckless and loved getting what he wanted no matter the cost, while Klaus was steady, thought over his plans, and in some ways was rather predictable. Kol was sadistic in a lot of ways and could be the most unpredictable person you've ever met.
He had promised to tell Diana about family matters and so he found himself meeting the young witch at Fangtasia. She wasn't waiting long before he slipped into the seat across from her and cocked his head as he looked her over.
"I must admit I'm a little jealous that you would visit Niklaus before me."
He was teasing, of couse. It took a lot to get Kol Mikaelson jealous and he was normally the one who made the females jealous. Diana was different. She was dark and there was something about her that attracted Kol too her besides the fact that she was beautiful.