[X] Tell Mariko to just go ahead with it. There's nothing that could possibly go wrong!
'Oh, don't you worry about it. It will go just fine~!' you cheerfully explain to Mariko. Really, she's worried over nothing. 'Kishi is a nice and reasonable person, she'll understand. Besides, if things start to take a turn for the worse, I'll be there for you.'
'Well, if you insist?' Mariko groans. 'For the record, I take no responsibility if she takes it badly, and I reserve the rights to tell you; "I told you so!"'
'Eh, it'll never come up,' you dismiss the concerns. There's absolutely nothing that could possibly go wrong, you're sure of it! 'Let's get this going, it's getting very late.'
Mariko sighs very audibly and drops her face into the palms of her hands. However, she refrains from commenting any further, instead collecting enough composure to go through with whatever she was planning. Her chance comes when Kishi moves her plate to the side, and prepares to take it to the sink.
Mariko speaks up. "By the way, H- Kishi?"
The girl in question turns around, startled by the sudden call and the obviously more serious tone. "Uh, y-yes?"
"I- we think there's something you probably ought to know now rather than later," Mariko continues. Beginnings of suspicion and worry seem to make their way on to Kishi's face, even if she doesn't say anything yet. There is another small pause of silence, before Mariko sighs again.
"You see… I'm going to be moving in to stay here- for a time at any rate," she lets out, hastily correcting herself mid-sentence. "So uh, you'll probably have to see my mug a bit more often than is strictly necessary… Just a fair warning."
Well, so far so good? It seems a bit self-deprecating, but there's nothing truly bad there so far. Kishi seems to be shocked, though you take the lack of abject horror as a good sign. Mariko, on her part, doesn't seem to be done yet, and moves on to quick reassurances on the subject matter.
"Now, I understand that this probably looks suspicious as heck, and I totally agree! It was Tamiko's idea, not mine." You nod at that, though with a small frown marring your face. "But given… well, regardless, it's probably good to go over a few things to avoid any misunderstandings."
Huh? She really has put some thought into it then?
"First of all, uh, I'm not planning to get between the two of you. I swear!" You freeze at the words, as it starts to sink in just what Mariko's going to talk about. "Just so you know, I am in fact 100 percent supportive of you."
Wait what? No... no, no, noooooo! Why is she doing that!? Even Kishi's face is flushed brilliant red. It's no doubt from embarrassment, the poor girl. Yet, you don't dare avert your gaze either, lest you accidentally see the smug face of your uncle, no doubt grinning like Christmas had come early. That bastard…
"In fact, I also understand that if you two need some, uh… time in private, I'll be more than happy to go elsewhere! In fact-"
You don't want to hear anymore. You have to act.
What do you do?
[] Scream in protest!
[] Grab Mariko, and take her to the side.
[] Interrupt and rush to reassure Kishi.
[] Write-in.