Donnie looks up from his computer when he hears you walk inside. He turns to you, pushing off the table and moving towards you in his chair, carefully and deftly placing you on his lap, pushing off again and sliding back to the table.

"You won't believe what I discovered, look."

Donatello begins to enter some complex combinations into the computer, showing you some incomprehensible entries, but he himself was delighted with them.