Despite what she said, Tsuruko was still caught off-guard by Stacy suddenly thrusting into her, yelping sharply as the dickgirl entered her ass with enough ease that it was hardly any effort for her. Even Tora couldn't help but flinch some in response, but just as quickly regained his composure before settling onto the floor in the seiza position. On his knees, he eagerly observed as Stacy started fucking Tsuruko, all while easing her into position after position until she was right where she wanted her.
Tsuruko groaned in reaction with each form she was contorted into, from on all fours on bottom, to front-facing on top, and ultimately with her legs lifted and spread as if in a reverse mating press. For that last one, she inhaled and exhaled heavily, taking what little time she knew she would be afforded to get accustomed to her position. Her eyes were almost glazed over and her tongue on the verge of lolling out, but true to "almost", she still had her wits about her. Enough that she could legibly respond to Stacy's final question before the "test" could truly begin.
"I'll take whatever you've got, Mistress, no matter how sore it makes me. Now go ahead..." She glanced back once more, grinning wide and perversely. "Show me and our little bitch boy how much you love fucking this slutty maid into pure submission~."
Tora blushed at the mention Tsuruko made of him, but quickly returned to his at-attention position, knowing that whatever Stacy did to start, he didn't want to take his eyes off of them, not for a single second.