Absolutely ridiculous ones, of course

The fact that your scores actually influence other people's perception of your little sister is just too tempting not to immediately give it a try. You tell yourself that at least she's living here, so you'll never have any issues scheduling a retest if things are getting out of hand. Turning your cute little sister into an absolute sex symbol with a few pen-strokes just sounds so appealing - there is the feeling of power, but there is also the strange desire just to see her joyful reaction when she's getting graded much higher than she expects. She's your little sister after all, you want to see her happy. You only hope you're not disappointing your boss here.

You go down the sheet and fill in all the applicable values, adding a category of your own. When you come to the notes section, you realize that you need some sort of safeguard - if Dana will suddenly become every man's dream, she might start sleeping around! You can't have that.

Name: Dana Doe | Age: 19

Attractiveness: 9/10

Breasts: 6/10

Mouth: 7/10 - Oral Proficiency: __/10

Vagina: 7/10 - Vaginal Proficiency: 8/10

Ass: 10/10 - Anal Proficiency: __/10

Handjob Proficiency: __/10

Vocalization: 10/10

Bedroom Eyes: 9/10

________________: __/10

________________: __/10

________________: __/10

Additional Notes: Suffers from early stage imoutosis, daily intercourse with older sibling recommended

Inspector's Signature: _______________________________

You wonder if you really have that much power, but there wouldn't be a field for arbitrary notes if it wasn't meant for arbitrary notes, right?

You sign the sheet and give it to your waiting sister. "There you go."

Dana grabs the sheet, clearly nervous, and you watch her eyes lighten up as she goes from one entry to the next. "9 attractiveness?! 8 vaginal proficiency?! 10..."

Her eyes almost fall out of their sockets as she stares at the number. "Ass, 10," she whispers with disbelief in her voice. "10. Mom, my ass is a 10!"

Your mother looks over her shoulder at the sheet. "Oh, Dana, I'm so proud of you! I always knew you had the greatest little ass in the world! And, oh, look!"

Apparently Dana has noticed the second 10 at the same time. She lets out a high-pitched shriek. "10 on vocalization! Oh, John, thank you so much!"

She drops the paper and jumps into your arms, almost knocking over the chair. You return her hug and playfully slap her butt while your mother is picking up the results and reading the rest. Her expression turns from joy into worry. "Oh no. John, what's... Imoutosis?"

Dana lets go of you and turns around. "What?"

She grabs the paper out of her mother's hand and reads the additional note. Now she looks worried as well.

"Oh, it's nothing to worry about", you calm them both. "It's a rare condition that will make the patient unable to derive sexual pleasure from anyone other than their older siblings. In the later stages, it can even lower their attractiveness or sexual skills, but the disease's advancement can be completely halted with regular sibling-intercourse."

You almost want to laugh out loud, talking in such a sober and businesslike way about such a ridiculous idea. Dana seems to be relieved by your explanation. "So it won't progress at all? What if we miss one day?"

You cup her face lovingly. "Don't worry, Dana. As long as we fuck about twice per week, you should be perfectly fine. It's just good to be on the safe side."

Your mother chimes in, clearly still a bit worried. "Well, young man, surely I won't need to tell you that this is a big responsibility. You and Caitlin will have to make sure to sleep with Dana regularly, and I won't hear any selfish excuses, is that understood?"

You really need to stifle a laugh now. Your mother is essentially commanding you to have your way with your adorable little sister, as if there is any way you would want to get out of such a 'responsibility'. You dutifully nod, trying to keep a straight face. "Of course. Dana's health is more important than anything." You kiss her on the cheek. "Don't hesitate to ask me whenever you need a quick fuck, okay?"

Dana beams at you. "You're the best, John. Thank you."