"I think I wouldn't have liked you then." Which is probably a lot closer to the truth than Kate makes it seem. Kate at fifteen (or thirteen? Fourteen? However many years less than Steph has on her) was a totally different person than she is now. She's grown enough to take this ribbing and roll with it, poorly, but roll with it anyway.

Picking up the ice water placed earlier in front of her, Kate quickly sips at it, hoping the coolness will somehow wash the blushing off her face. "What did you say earlier? B&E?" She's hoping she heard wrong.