K.
He was quick to answer, trying to rile her up and annoy her.
K rolled her eyes and gave him a menacing, death stare. "Kristen is what my mom, my nana, my pop-pop and everybody else calls me." She made clear, tapping her index finger on the tip of his perfect nose. "And unless you want to be a part of the everybody else group, you better stop calling me Kristen. I'm K. Jesse's K. Your K." She stressed enough, making Jesse smile.
"Yes, ma'am." He faked a Southern accent.