Roland,
Rather than pursuing every mystery, I think it’s more important to remember you always have the potential to unravel it yourself (with a fulfilling journey). Even if you end up never pursuing a phenomenon, I still believe you can benefit from acquiring this mindset.
Psy-Kosh,
We share an evolutionary history with different animals on earth. There could be attractive properties in animals that give us a similar representation of sexiness as they do to their own species. Same reason we find you will find different creatures finding other creatures cute e.g. humans to dogs and gorilla to human.
Additionally, there has been cases where dolphins attempted to sexually engage with humans. An intelligent alien will have a shared ancestry and therefore will not have sexiness representations from “sexual properties” exhibited in earth’s creatures.