"You're a jerk!" screamed Abney, growling as he faced off against his older brother, this had become a common theme for them to argue, the six year old yelling at the ten year old for any reason under the sun. "I wanted the chance to see the lunar eclipse!" he yelled, only to duck when his older brother tried to slap him with a paw. "HEY!"
"Shut up!" yelled Romano back at Abney, snarling as the fire type glared at his polar opposite, the two bi-types starting to face off in a fully fledged fight. "It's not safe to be out here, now if you continue to be a little bitch I'll make you pay for it!"
"Oh sure, what're you gonna do to me, bite me?!" snipped Abney right back, then did something that crossed a line, the younger vulpix spraying ember at his older brother.
Romano yelped at the sudden pelting of ember, it didn't do much to him but it still hurt, before he snarled, tackling the younger vulpix and tussling with him, punching, kicking, biting, before chasing after his younger sibling, running after him into a small cave area that was in the woods, only to tackle him from behind after cornering him, biting his ear firmly.
"FRRGH!" yelped Abney, then gagged hard when Romano yanked his collar up from above, choking him slightly, a look of confusion being given as he felt the older pix nudging against him. "EW! Quit it!" he snapped, then tried to kick him off.
Romano however went too far, his fores snatching his younger brother's hips up before he sank his foxhood under his tails, a loud snarl coming from the firefox as he began to immediately pump himself in and out of his hole, leaking pre into him.
Abney yelped several times in a row at the sudden insert, squirming around under him before wincing in pain, the sizable length in his backside hurting a lot, only to shudder hard as he began to pant out, drool dripping from his mouth as he felt his brother force his front down, keeping his ass up as he's railed, his body heating up from the sexual contact it was experiencing.
Romano panted out softly as well, holding his brother in place as he rolled his hips hard and fast, audible smacks between the two of them being heard throughout the small cave, soon enough, the older vulpix would sink his knot into his brother, a hard sigh of relief being heard as he shot off a small amount of cum into his hole, sitting up some as he pressed his paws firmly at his brother's back. "...little slut." he mumbles, adding one final insult to his feud with his younger brother, seemingly not caring he just raped him, but mentally, he was freaking the fuck out that not only had he fucked his brother, he'd knotted him too.
"Mmmrph?!" whined Abney at the sudden rush of heat in his backside, then looked up at his brother's words, confused as to what he meant by that, and what he had done to him. "Get off me!" he demanded, trying to push him off, only to yelp in surprise as he found his brother stuck to him. "ACK!"
"Stop squirming!" growled Romano. "We're not going anywhere for a while!"
"It feels weird! Get off me! And get your thingy out of my butt!" he whined.
"Oh for fucks sake..." snarled Romano, then decided to strike fear into his little brother a bit more, pinning him awkwardly before sinking his teeth into his neck, breaking the skin before beginning to drink blood from the wound.
Abney yelped out in surprise and pain at the bite, sure, he'd been bitten before, but the moment he felt his brother drinking his blood, it caused him to freak out to the point he pissed himself, a small puddle of wetness appearing under them as he was frozen in fear, his heart pounding hard and fast, to the point his vision started to blur and swirl.
Romano took a bit more blood, then let go, making sure to show he indeed did drink his blood, licking his bloodstained muzzle in full view of him. "Delicious little prey" he grinned. "Now stay quiet, lest you want me to eat you up~"
Abney whimpered, shivering hard as he held still, unsure if he was dealing with his brother, or a monster that was impersonating him, but did indeed stay quiet, not saying a word, figuring the consequences would be worse if he did.
This... was the beginning of a trend that would last years, the incestuous grooming of Abney into the best "girl" Romano could ask for, years of abuse, rape, and terror that would not resolve for better part of a twin decade...