Apart from psychological factors?
I understand that someone who is obese or doesn’t keep good hygiene would be a turn off for most people. Sexual pleasure is determined by things like orientation of the individual, smell of their partner…but attractiveness?
I don’t believe that attractive people have more nerve endings than the average or below average person or that they’re better in sex. But from an evolutionary point of view it signifies that they have good genes. So having sex with a hot person means that you children will most likely be healthy. And biology says sexual pleasure is a way to get us to reproduce.
What do you think? Is it just the perception that sex with a hot person is better or is there some logic to it?