Mom wants to go first

From Torg Adventure

Your father goes to sleep, but the excitement and anticipation has you wide awake. You take off your shirt, and notice you stink a little, so you take a quick shower and put on deodorant and clean clothes. The storeroom doors opens and your mom sticks her head out, smiling at you. She crooks a finger at you, beckoning you to come in. As you walk to the door, your sisters file out.

You go in and close the door behind you. As you turn you take in your mother's naked form for the first time.

"You've grown into such a handsome young man. I invoked parental privilege to get the first shot at you. I also said that since I was older, it would probably be harder for me to get pregnant. But the truth is I just wanted first crack at you. I'm hyper-fertile, so if I so much as smell your cum, I'll get pregnant.