When people hook up, have sex, etc... it's typically on a primal level. For example, you may meet a man who is nice, look decent, and has his life together, and has a lot in common with you, but wouldn't have sex with him right away, because you aren't really physically attracted to him.

On the flipside, you could meet a muscular guy and like him from a physical standpoint and want to have sex with him on day 1, because he meets your physical requirements and you want to have sex with him because he turns you on.

They say this is why men and women are quick to jump into the sac with someone they find attractive. It's primal, it's our biology, and our bodies just scream, "I must mate with this person!"

So, here is my question, and let's take away all social constructs (fwhat people will think, money, the personality and character of that guy, culture and society, all of that)... if you have a FWB, f-buddy or one night stand and there was no birth control, would you be okay with having a baby by that person?

I'm asking it in this way, because it's human biology to want to mate with the most attractive person (in your eyes) to give your child the best chance at survival and to create attractive children.