well when the penis is erected, your genitals are able to produce glands that are called semen, and when you insert it in a vagina, you must perform action, so that the semen can come out and be injected into the woman's vaginal, therefore the semen or sperm will be released and go in a woman's egg or eggs and will create a baby.
when a mom and a dad love each other they go through a mouchen in the bed room in till they are done then they weaght a few mouth they the mom is preagent
