At least once, your father and your mother were in bed, and your father got a hard-on, and he stuck it inside your mother and they fucked.
Sometimes maybe your father fucked your mother in the ass, and maybe on the night that you were conceived maybe they did that, before or after, or maybe they didn't, maybe your father never fucked your mother's ass, but on the night that you were conceived, one thing is certain: Your father fucked your mother in her cunt.
Maybe your mother sucked your father's dick first, and maybe your father ate your mother's pussy. Maybe your father sucked your mother's clit while sticking a finger or two up your mother's slit until she got really wet. Maybe he got his whole hand up there. If you have older brothers or sisters, then your father probably could have gotten his whole hand up there. If not, then maybe not. But at some point, your mother was wet and loose enough to accommodate your father, and they fucked.
Maybe they did it doggy-style. Maybe your mother got on top of your father. Maybe your parents liked to talk dirty to each other when they were fucking.
Maybe your mother screamed, "Oh daddy. Oh daddy. Fuck me, daddy, fuck me, fuck me, fuck me," and then maybe your daddy shouted, "Here it comes! Here it comes! Get ready, bitch, here I come," and then maybe your mother said, "Come in me, come in me, come in me! Oh yeah, baby, fuck your mommy, fuck your momma's sweet pussy, oh yeah, daddy, oh yeah, oh yeah, oh yeah."
Or maybe they were very quiet.
But at any rate, eventually your father came and his sperm shot out of his dick and it went up your mother's cunt and it fertilized her egg and that was you. That was you in your mother's womb, growing like a virus for nine months, making your mother fatter and fatter, making her sick, making her vomit, making her hate your father for doing this to her, making her hate you, this thing inside of her, like a virus, growing and sucking, like a leech attached to her, sucking her blood, drinking her like a vampire fetus, growing and sucking and growing and sucking until one day you want out, and you burst through the snotty membrane and you pop out of your mother's cunt all covered with blood, and a bloody umbilical cord still attaches you to the inside of your mother somewhere 'til someone snips it off and you are severed. You are a separate being.
This is the miracle of childbirth. To some, it is proof that there is a God.
Now after you were born, maybe you sucked milk out of your mother's tit. Maybe your father wiped the shit off your shitty ass. I don't know. You'll have to ask them. But that is basically the way people are born. In a nutshell, that is it. Unless you were a test tube baby, which you weren't, so just face it: Your father fucked your mother, and the next time you're fucking somebody, just try to keep that in mind.
(sung ad-libs, including the following) Miracle Miracle