Porcupine Embrace

After the disastrous kiss, tensions between Asuka and Shinji comes to a boiling point, whereby Asuka makes a major mistake without realizing it, causing Shinji to shut her out. When Shinji's sync rate skyrockets in the aftermath, the friction only increases, racing to the tipping point as the Twelfth Angel looms on the horizon. (not a shipfic, exactly)