Does anyone remember a story about humans visiting a planet where they had fruit that smelt so delicious that it was almost impossible to resist but if you did eat it, it changed you genetically into a different species that I think was immortal. Seem to remember something about the 'victim' losing their human face and a sort of beak would form. Sound familiar to anyone?
I've googled it and looked everywhere but can't find it. It may have been a short story. I read it many years ago and would like to read it again. Thanks.