"Haha. What?"
An apt reaction, the same as yours.
Olga had revealed your tiny self on her sister without asking you. You've told her to keep this a secret, didn't you? Wait... You didn't actually!
Shit.
"...Wait, you're not fucking with me aren't, you?" Her sister in the white-T asked.
"Nope." Olga shook her head, "Wanna see the little guy."
Uh, oh.
"Yeah sure."
"What, you do have a tiny guy?" The other sister with the pink-t asked.
Both of Olga's sisters crowded right in front of her. Eager to see your feeble body. Your feeling embarrassed and somewhat betrayed by revealing your tiny existence. At the same time cursing your past self for forgetting to tell her that your a secret.
But it was too late, she cupped her cleavage and pull her breast apart slowly to reveal your tiny form.
"Haha. Wow. He is real!" The white-T Sister sneered.
"Huh. So is he some fartplug?" The Pink-T sister asked. Which alarms you greatly.
"Nah. Not this time." This time? What? "He was the one who fixed the A/C. Our literally little helper here. As a reward I'm fulfilling his fantasy for the day." Olga explained, cupping her chest a bit harder and squeezing your body in the heat.
"Aw... That's actually nice of you Sis. And kind of rare since what you usually do to-"
"ANYWAYS." Olga interrupted, okay clearly there's something odd you don't know. Your already distrust her much... But at the same time you're morbidly curious where this is gonna go. "He's gonna be out guest, so I want manners around this house. About as polite as not gunking up the place or using our guest to suck your nasty assholes. So best behaviours, Olav, Onna."
"Alright sis~" Nodded the White-T, Olav. Hanging to her back.
"Yeah sure. Fine." Agreed the Pink-T, Onna. "So, what do you want to do little guy, you've got to play with three of us. Lucky you huh?"
Yeah sure... Lucky...
...Or maybe this is genuine lucky?
Okay, so the whole revealing thing you didn't consent too. But now that they now you exist they won't trample on you or worse... Used you as some sort of fartplug... Whatever that is, Euuughhh. You shudder to think.
It might be a blessing in disguise, now how do you wanna do it?