Men have a strong biological urge to impregnate multiple women, now as humans we are intelligent and rational enough to realise having multiple kids would be a lot to take on long term. But the biological urge is absolutely there, the urge to lay with multiple women. As a man i have this urge every single day, i have a partner i love, shes awesome and satisfies me sexually. But that doesnt change the fact that i still have this strong urge to fuck other women. Sure women can have this urge too, but testosterone is a powerful hormone and the biological urges men have tend to be stronger in regards to wanting multiple options. Its why when you see ultra powerful men a lot tend to have had many lovers, maybe a main woman but many side women. Where as many powerful women still tend to only have one man or only seek one long term partner. There’s absolutely a big difference in biological wiring amongst both sexes.