"O-ohhh..." Mochi gasps, arching its back as you fill it up with your enormous length. The pink bun's eyes roll back in its head, a mix of pleasure and pain coursing through its tiny body as every inch of you stretches and presses against it.

"So... warm..." Mochi murmurs, hips beginning to move on their own accord as it starts to adjust to the incredible sensation of being filled by something so massive. "It feels so good... so big..."

Mochi's tiny body shudders as it reaches its first climax, its inner walls convulsing around your member as waves of pleasure wash over it. The pink bun gasps and moans, arms flailing wildly before finally wrapping around your neck in a vice-like grip.

"Oh... Mochi likes that..." the pink bun whispers, voice barely audible above the sounds of their heavy breathing. "So big... So good..."

"Huh?" Mochi tilt its head, a bit confused by the reaction. "But this is just what humans call 'pregnant sex', right? It's not like I meant anything naughty..." The pink-haired mochi looks a little hurt that you didn't appreciate the artwork. "Mochi was just trying to help you with your game...if you want more ideas, just ask!"

"Oh..." Mochi says, looking a little relieved. "Well, in that case...you're welcome! Mochi is glad you liked it." It pauses for a moment before perking up again. "Hey, how about we make some mochi ice cream together? You can help Mochi roll the mochi and fill it with yummy stuff!"