You entered the kitchen, expecting to see Andrew engrossed in research notes. Instead, Sean sat on Andrew's shoulders giggling uncontrollably while pulling Andrew's hair. Andrew remained silent and didn't mind the child scribbling in his notebook.

"Horse!" Sean said happily, tugging harder on Andrew's hair.

Andrew smiled. "Yup, Horse." He drew a simple horse adding cartoonish eyes and a smile.

Sean leaned forward, his eyes were shining. "Draw cat!"

Andrew obliged, creating a the cat the little one asked. Sean squealed, releasing Andrew's hair. Andrew smiled. "Your brother's adorable. Reminds me of my youngest niece."