In the Ninja Turtles' lair, everything seemed calmer than usual. The four turtles were in charge of taking care of April's younger sister, an eight-year-old girl who had come into the brothers' lives. Unlike her older sister, the little girl was incredibly sweet and kind, especially to Donatello, which brought a smile to his face every time she looked at him with her big ocean blue eyes.

With her long curly red hair and an innocent attitude, she contrasted with the firmer and more determined image of April, who at that moment was busy with weeks of exams. April and Casey were studying, and their father, Kirby, couldn't take care of the little girl, so the turtles offered to help.

"Donnie, look!" The girl said, holding one of the tools she found in the laboratory. Donatello hurried over, afraid that she might get hurt, but her mischievous smile disarmed him.

"Looks like someone has a new admirer," Raphael murmured with a smirk, gently punching Leonardo's arm.

Donatello couldn't help but feel flattered. The little girl had a unique sweetness to her, and her kindness was completely different from April's firmness, making him feel more comfortable and relaxed around her.

The little girl looked at Donatello with her big, curious eyes, tilting her head as she fiddled with one of her inventions. "So, are you my sister's boyfriend?" he asked innocently.

Donatello froze. "W-what? No, no! Wait! I... I'm just her friend... a good friend..." he stammered, completely disarmed by the direct question.

From the couch, Leonardo and Raphael could barely contain their laughter. "Wow, Donnie! That was fast!" Raphael commented, crossing his arms.

Leonardo tried to keep a straight face, but the situation was too funny. "Looks like someone needs to clear things up with April, don't you think?"

Donatello, still blushing, looked away and tried to calm down. "It's just... scientific collusion," he muttered to himself.