A "mouth-watering scenario" describes something that is truly tempting or appealing, often in a food-related context. There are many synonyms for this phrase that can be used to convey the same meaning, including "crave-worthy situation", "tempting circumstance", and "appetizing prospect". Other options might include a "luscious scenario", "delectable experience", or even a "tantalizing possibility". These phrases all evoke the same sense of longing and desire, suggesting that the subject being described is something that is incredibly enticing and hard to resist. Whatever wording you choose, the result will be a description that is sure to whet the appetite and leave people hungry for more.