A strangled sort of grunt left Buffy when Faith's elbow slammed into her throat, and she could feel her windpipe already beginning to throb. The array of attacks to her middle didn't tickle, either, but they were a little easier to deal with once she caught onto Faith's rhythm and began to block with her knee.
She stumbled back a little, chuckling quietly when she saw the knife. "Yeah? Well then do it." She straightened up and held her arms out, giving the other Slayer a challenging look. "Come on and do it. Stab me. Kill me. Just liked I tried to do to you."