Tits, and yes

She looks shocked for a moment, but then she says, "The tits." You watch expectantly, and see as her chest starts to rise at a moderate pace. She looks down and opens her mouth to yell or scream but can't since she has to remain quiet, so she just looks with some amount of anger and resignation as her tits slowly ballon outwards.

Your cock jumps as you see her shirt stretching. Her bra snaps and she winces as it slides to her waist under her shirt. Soon, her boobs are more than solid handfuls, and her shirt, which was clearly not made to be elastic, is already ripping. You feel your dick hardening as you see her boobs pushing against the restraint of her shirt, before they finally rip it open, leaving only remains below her boobs and around her collar. You allow yourself to briefly touch your dick as you see them jiggle from their breakout and from their continued expansion, which you can tell really upsets Nakamura.

She reaches out and pushes on one of her breasts after they stop growing, looking at it with awe and disgust. They are incredibly large, though they could perhaps be considered natural if one got over the sheer improbability of it, but they are also firm and taught. You get harder, then look at the professor and say, "That works then, good to know. There's a few more things I want to try though, so hang tight." Her lip curls and she gives you the finger.

It makes you consider what you're doing, but your anger fuels you on so you say, "That wasn't nice, you should probably not anger me right now. That said, I want to see if this can alter your past and your body at once, so would you rather have had a perfect bubble butt or been perpetually wet since your freshman year of college?"

She just responds, "The butt," and you watch as her ass and hips expand to match her size and complement her new bust.

"You can speak, but only to answer this: when do you remember having that size butt?"

She looks confused, but says, "Since college, but also I know that you somehow just did it to me now." Interesting, you think. It seems that anything can be done with this as long as it's a choice about them, much as the being implied. You realize now that you have two sets of memories of her, one in which she had her new ass and one in which she didn't. The one in which she didn't is still very real for you, but you think it's fairly likely others will simply find it normal. Of course, that waits to be seen.

You decide to finish here with a few more questions to really drive home your displeasure with her and then move on to something else, so you say, "Would you rather masturbate while thinking of me every other night, or give a random stranger a blowjob or titjob every other weekend?"

At this point, Nakamura is just staring at the ground with a somber countenance, and she replies weakly, "stranger." Damn, you think, she hates you way more than you thought possible or she's a little more outgoing than you thought.

You decide to be a little nice, though not by much, and say "Ok, and would you rather be unable to do anything about this situation and me but secretly slightly like it and be turned on by it, or be unable to do anything about this situation and me but hate it."

She sighs and shrugs her shoulders, then says, "Well, I have to do it either way, so I suppose like it and turned on." You see her exposed nipples get fairly erect, and she notices you looking and glares at you.

You feel yourself getting more and more turned on. Despite how hot she's looking you still harbor enough negative feelings for the professor that you don't really want to have sex with her. Instead, you say, "Would you rather masturbate yourself to orgasm three times in a row with your legs outstretched over the desk, or suck on one of your tits for the next ten minutes?"

"I'd rather the suck," she replies slowly. Her hands reach out and she slowly maneuvers her tit upwards, then starts to suck on it. The sight pushes you to the edge. You remove your pants and quickly bring yourself to orgasm, cumming on her papers.

You start to leave, but as you get to the door you say, "Would you rather have the most sexually sensitive tits the world has ever had or perpetually lactate."

She tenses up, but manages to say, "Sensitive," around her tit, at which point she moans and grinds into the leg of the chair. You smile and leave, shutting the door behind you, then check the time.

Now that you're removed from the situation, you feel disgusted by your choices with Nakamura, but you do still feel some anger towards her. You sit against the wall and put your head in your hands, thinking about what you've done and what you'll do next.