Configure i2c pins with the Wire.h library?

I am using both an LCD display and the Teensy Audio Shield. I am running low on PWM modulation pins and only have 9 left, fortunately the exact amount I need to control the LCD. However, when using the Wire.h library with the Audio Shield I am unable to control the lcd properly. I am assuming this is because pins 24 and 25 are used for i2c communication when I only want them to be standard PWM pins. Is there a way I can use pins 24 and 25 as PWM pins instead of i2c?