I've been asked by people on different ends of the fat lover spectrum about advice being a good ally. From the "My lover doesn't see how beautiful she is and won't have sex with the lights on," to the "My lover uses the term fat to describe themself but I've always thought of that as a derogatory word... isn't it?" For FAT SEX WEEK I've highlighted some of the best ways to be a good ally to your fat lover.
This is all from my limited perspective, you should obviously be in good communication with your lover to find out what works for them and how they operate in the world. Communication is an essential sex toy!
This advice applies to folks of all sizes, not just thinner folks partnered (in all the myriad ways one can partner) with fat folks. And a lot of it is good advice for sex in general, regardless of whether or not your partner is fat.