Found these tips that might help:
http://sewing.about.com/od/technique...peryfabric.htm
https://www.youtube.com/watch?v=zugo7ChuPdA
http://www.blogforbettersewing.com/2...th-tissue.html
http://sewingthe60s.blogspot.com/201...wing-with.html
The easiest tip, I think, is to pin to tissue paper (according to that one website, parchment paper works too) and sew with the tissue paper next to the bed of the machine. In other words, you are seaming 3 layers instead of 2 -- your two fabrics plus the paper. You need to rip the paper out afterwards, of course, but for me it was worth the extra effort.
I'm not sure how fusible would act since it does change the characteristics of the fabric. Might be worth fusing a couple of test pieces. You would want to use a featherweight fusible interfacing, I think.