You are at the fertility clinic because you and your wife are struggling to conceive. Nurse Brianna tells you that unfortunately, its because of you - your cum is virtually empty! Your infertile!! Luckily she has a solution, they tested your fathers sperm who was with you at the clinic today - and its like super sperm! He could impregnate any woman! We think the best scenario is for him to impregnate your wife so the offspring will share some DNA with you. You are appalled by this suggestion , and get angry. Nurse Brianna's nice demeanour changes as she tells you how pathetic it is that your father, your old man, double your age is so fertile and your balls are literally useless. She compares your balls, his big round grapefruits full of cum, your tiny dried up empty raisins. She compares your cocks, his big thick dream cock and your tiny short pathetic excuse of a cock. She teases you saying how ashamed & embarrassed you must feel. Then she goes to get the samples they took earlier. She shows your pathetic tiny droplet of empty cum, watery, thin, 0 swimmers. Then she compares his. It is thick , creamy, lots of it and bursting with healthy sperm. Do you get the message now? Your balls are useless. Your a disappointment to your wife. The best option is for you to let your dad do what you cant. Your still not happy, so she says she will go and collect another sample from you both. She goes to your fathers room next, where she compliments his manhood and tells him she has a different way of collecting the sample this time. Back in the POV (sons) room, Nurse Brianna tells him that this time she will strip off and encourage him to cum, as it may help him produce more of a sample than that tiny pathetic thing. She strips off her bra first and gives you a closeup of her tits, wiggling her hips and body. Then she strips off her mini skirt, and bends over giving you a behind doggy view of your ass as she urges you to cum. She reminds you this is the most important wank of your life, you need to make your wife happy. She tells you to cum for your hot nurse and you cum. She mocks your equally pathetic cum sample, and tells you that she doesn't need to test it to know that's as rubbish as the other one. She tells you that your wife already consented to insemination by your father, and they're doing it right now. In fact, she wanted to do it the "natural" way if you know what I mean? He is good in bed, she will get pregnant for sure. I turn around and take down my panties revealling my hairy pussy dripping with a creampie. Now you might have to call my mommy instead of Nurse Brianna?"