It was morning, the sun was shining, the birds were chirping, and Phineas and Ferb are sleeping peacefully on their beds. With their bodies laid fully down on their backs. The sweet sounds of them softly breathing.
Perry, then came in the bedroom. He gets on Phineas's bed, gets on the little red-head's half exposed belly.
Phineas (sleepy): "*yawn* Oh, good morning Perry."
Phineas picks up the pet platypus, and gives him a hug. Before, he gets up and wakes up Ferb. He tried poking him, he tried shaking him a little, but the he tried something he knows would work.
Phineas gives little kisses on Ferb's neck, and rubbing his belly. Ferb slowly half opening his eyes. He then pulls Phineas for a hug (he would happily kiss him, but Perry is here so...)
Phineas: "*giggles* Good morning Ferb."
Ferb: "*giggles lightly* Mornin Phineas."
Candace came in the room.
Candace: "Mom and Dad are away for their honeymoon. And they putted me in charge. And you the drill. Also, Phineas why are you on Ferb's bed?"
Phineas: "Umm... Well..."
Candace: "Ah, never mind. Just get up."
Candace left the room. Phineas and Ferb got off from the bed. Then changed their clothes. They went downstairs. Just when they are at the exact bottom, they checked if nobody was here. There wasn't. Phineas jumped into Ferb's arms, and kissed him like crazy. With Ferb (of course) kissing back. They tongue-wrestled, till they needed air. When Phineas got out of Ferb's arms, they went to the kitchen, for some breakfast.