Aesthetic.

You wonder what the "Aesthetic" tab is all about, so you click on it. From here, you have five further options, each one corresponding to one of the five senses.

You click on the "Sound" tab first. Here you see a list of sounds (billions of them in total), apparently ranked by how much pleasure Maddie derives from each of them. High on the list are "the voice of a lover," "baby's laughter" and a song that you recognize as her favorite. If you wanted to be a total dick, you could move her favorite song down the list, making it impossible for her to enjoy it. But why would you do that? You're not a cruel person. Just very horny.

You switch to the tab that says "Taste." Here again you find a list of sensations ranked by how much Maddie enjoys them. Fresh water and chocolate truffles are high on the list. The gears start turning in your mind.

You enter the search term "semen." Yes, semen has an entry on the list of flavors. It's very far down, right next to beer (a drink that Maddie has loudly proclaimed her hatred for). What if you were to bump it up to the top of the list?

Now, you know for a fact that Maddie is a virgin, with little interest in sex and even less interest in giving head. So even if you alter the list to make semen her favorite food, what are the odds that she'll taste it in the first place? This is where altering her behavior comes in.