First off, if you are committed to successfully nursing your twins, you will want invest in a good twin nursing pillow. (twingocarrier.com)
Unfortunately, the brand I have is not available anymore, but I used a My Brest Friend pillow with my firstborn and I bet the My Brest Friend Twin nursing pillow would be great, as well. (mamas.whole30.com)
Twin nursing pillows provide moms with the extra help they need to manage the task of feeding two babies at once. (omaby.com)