It was a bright sunny day and Phineas and Ferb were sitting under their tree in the backyard when suddenly Phineas climbed into Ferb's lap and leant up REEEEEEAALLLL CLOSE, so close that Ferb could smell the tacos that Phineas ate for breakfast… because, y'know… he likes tacos….
"Hey Ferb… I know what we're gunna do today~" He said in a surprisingly deep voice for a… wait… how the hell old is he? Shouldn't he be, like… 10? LOL! Ok, so his voice broke when he said it (which Ferb found fucking hot).

"I'm gunna do you~!" Ferb replied in his sexy British accent and tore off his younger (?) brother's clothes. He couldn't hold back his unbearable lust… the unbearable lust that can only be mustered by a 10 year old English boy with hot ranga brother.

"FERB! I NEED YOU INSIDE ME!" Ferb was ALL TOO HAPPY to comply *eyebrow wiggle*

"You guys are so busted!" A shrill screech came from the other side of the yard just as the boys were both about to come, even though they had only just started…. DUDE, THEY'RE 10? "I'm telling MOM!"

Candace ran to tell their mother, who was putting cans in a high cupboard, her shirt riding up and showing her well-toned stomach. "MOOOOOOM! PHINEAS AND FERB ARE HAVING SEX!"
"Oh, lighten up honey…" Her mother stalked up to her and snuck a hand up her skirt.

"MOOOOOOM~!" Candace called out wantonly, attracting the attention of her father, who cupped her non-existant breasts. "So…" he called in his accent, even sexier than Ferb's. "You finally got her to come to us…"

"Whatcha doooooin'?" Isabella asked in her sing-song voice, even though it was obvious as she watched the two boys writhing on the grass (they'd been too aroused to care if she was there). And then Perry came and she had sex with a platapus…. And Isabella was seme, she fucked his platapussy hard.

AND THEN THEY ALL CAME SIMULANTIOUSLY WHICH ROCKED THE GROUND ALL THE WAY TO WHERE BALJEET AND BUFORD WERE RECOVERING BECAUSE THEY CAME TOO QUICKLY (wonder why~~~)