(See Parental investment fact box.) With this background, researchers expected to find more men who wanted greater distance for a fleeting sexual experience – and they found it.“Men on average wanted to leave to a greater degree than be intimate after sex in all the geographical regions,” says Kennair.The main differences between the sexes can be found among those who want to leave and those who want the other to stay.
He came up with the idea for the new study that examines negative feelings after sex. “Part of respondents in the study were in long-term relationships, even though most respondents reported these negative emotions after short-term relationships,” says Fernandes.
Sex can be a mutual source for everything from joy to frustration.
The sexes also experience regrets in varying degrees and about different aspects of the sexual encounter.
“Women have regrets after sex more often than men,” says master’s student Heitor Barcellos Ferreira Fernandes from the Federal University of Rio Grande do Sul in Brazil.
Even when a sexual relationship does not result in a child, biology still drives our sexual psychology.