Jeremy & Phineas
22-year-old Jeremy was sitting in the coffee shop, waiting for his girlfriend's 16-year-old brother.
The door opened and Phineas walked in. With a wave he went to see Jeremy. "I want to get myself a drink, I'll be right back." Phineas said.
It only took a couple of minutes before Phineas came back to the table with a large coffee and a marshmallow bar. "How's Amanda doing? I heard she was sick." Jeremy nodded. "She's doing better." Jeremy said then took a breath. "Phineas, I want to marry your sister."
Phineas paused, he was just about to drink from his cup. The cup was gently lowered to the table. "Why are you asking me?" Phineas asked out of curiosity. Jeremy smiled. "You're her brother."
Phineas creased his brow. "Ferb's her brother too." Jeremy raised a finger. "Ah, but you're her biological brother. You're her closest male relative."
Phineas rubbed the back of his neck. "Well, you love her. You've got a daughter together. Sure. Marry her. Be happy."