I won’t post any underage sex on my blog which would include statements about incest at a younger age.
However, you did say you are now living with your cousin and you are in your 30′s. I’m honestly not sure if he would be interested. Does he have another woman in his life? That may affect his interest. Are you close with each other? Do you talk often? Do you flirt with him? There are lots of things that can judge his interest. Maybe you should just bring up the things you used to do and see how he responds. Good luck.