Then he bucked forward and sighed with pleasure, as his stiff prick slid gradually into the clasping wetness of her cunt.
Debby grunted and hornily started fucking her ass against him, not even waiting for him to get all of his cock inside her. Her tits swayed back and forth, and her nipples were painfully stiff as they brushed, the sheets. She was as horny as a bitch dog in heat.
"Oh, Debby, that's so good," Dave sighed. He grimaced, as if the pressure of her pussy walls around his rod was more than he could stand. "Your cunt's so tight… unhhh…"
"Fuck me, Dave, don't wait!" Debby screamed. Harder and harder she humped her ass, burning up with her animalistic desires. "Fuck me, fuck me haaaard!"
Dave bucked forward, ramming his dick completely up her fuck hole, stretching the lips of her pussy around the base of his tool. Then he feverishly worked his hips and met her humping strokes, pumping his prick, fast and rhythmically through the buttery wetness of her cunt.
"Squeeze my titties!" Debby pleaded. She lifted her ass, desperately trying to get more of his satisfying cock inside her snatch. "Pull on my tits while you fuck me! I want to cum!"
Dave wrapped his palms hungrily around the swaying, mammoth globes of her spongy breasts. He squeezed and kneaded and pulled them, making her nipples ache with their hardness against his palms. At the same time he caught the tempo of their humping rhythm, reaming out her pussy with long, even, satisfying strokes of his swollen cock.
Then they were fucking together. The bed shook on the floor as Dave humped his older sister. Debby felt his balls thudding against her cunt mound, his panting stomach heaving against her upper ass with every thrust.
She was practically beside herself with lust, she made her cunt tunnel contract and squeeze around his pumping dick. She wanted him to cum first. She wanted to feel his white gushers squirting deep inside her pussy.
But Dave had more endurance this time. It was Debby who came first.
It happened like an explosion. Her clit began to tingle wildly as it chafed against his bloated cock and her flowering cunt gripped convulsively to the base of his dick.
"I'm cumming now, Dave!" she whimpered shrilly. Debby clawed the sheets and bucked her jiggling ass, gasping for air as the cum overwhelmed her juicing pussy. "Fuck meeeeee! Fuck me haaarrrd! Unggggggghhhhhh! Oh, God, uuuuunnnnggghhhh, yes… unhh… unhh… cuuummmiiinnng!"
Debby came so hard she almost blacked out. For a full half minute the spasms raged through her nakedness, making her skin goosebump, her clit tingle, and her pussy throb with desire. She was so overwhelmed by orgasm that she didn't notice when Dave pulled his throbbing dick out of her fuck hole.
But when she came to she realized he had pushed her flat onto her stomach on the mattress, in a helplessly submissive position. He had her ass cheeks spread apart with his hands now. He was actually pushing the spongy head of his stiff dick into her puckered little pink asshole.
At first, Debby couldn't believe it. Never in her life had she considered letting a man fuck her in the ass, not even her future husband. She'd heard of the perversion, but she thought it was too sick and depraved to be taken seriously. As far as she was concerned, only degenerate people would ever take pleasure in fucking up the ass.
But now her brother was doing just that, and she could hardly believe it. Debby lay silently on her belly, feeling the knob of his cock twitching as it pressed into the rubbery grip of her asshole. Then he humped over her, embedding the fat head completely inside her puckered hole.
"Unggghhh!" Debby grunted. Her cheeks flushed with pain as her asshole lips stretched around the thickness of his cock. "Stop it, Dave!" she whined, beginning to struggle beneath him. "Awww, God, that's disgusting! Don't do it to me there, noooooo…"
"Always did want to fuck you up the ass," Dave grunted. He humped frantically over her sweating nakedness, his cock throbbing as he forced more of it into the sucking tunnel of her asshole. "Unh that's so good, awwww God, you got a really tight one!"
"Stop it, Dave!" Debby cried, more shrilly than before. Her brother had half of his huge cock embedded in her asshole, and the pain was worse than ever. Waves of burning heat shot through her, forcing her asshole walls to clasp and contract round the swollen stiffness of his cock. "Take it out of me! You bastard, stop it!"
Dave sighed with pleasure, forcing the last inches of his cock between the puckering, stretched-apart ring of her ravaged asshole. Then he held her spongy tits for support and savagely began to fuck on top of her, brutally pumping his big dick in and out of her virgin ass tunnel.
It was the most overwhelming feeling Debby had ever experienced. She stopped protesting and lay silently on her belly, giving herself up to the incestuous rape of her ass.
With Dave's every thrust she could feel his meaty prick slamming up her hole, spreading her asshole walls further apart around the throbbing shaft of his cock. Her ass was burning incredibly; she could feel the heat of his humping throughout her loins, pouring through her cunt.
Already, it was beginning to feel good. Debby flushed with shame as the depraved pleasure coursed through her body. Yes, it did feel good. Her brother's big, cum-dripping dick, shooting through her asshole, fucking her deep and fast and hard.
"Unhh…" Debby couldn't help moaning with anxious desire. Her nipples were stiff again. Her hair-fringed pussy oozed fuck juices onto the stained sheets. "Oh, Dave… unhhh yes… ahhh…"
"You like it now, don't you?" Dave panted. He pulled on her swollen tits and fucked her asshole harder, his stomach slapping against her giggling cheeks with every impaling thrust. "You like a nice stiff prick up your ass!"
Going into me, Debby thought hotly. Oh, God, yes, what a huge cock, pushing into my asshole… my pussy's so wet… I want to finger myself… I do like it, it's so good… fuck me, Dave… fuck me hard…
"Harder, Dave!" Debby cried aloud.
Wantonly she thrust her hands under her bucking nakedness and finger-fucked her dripping pussy, rolling her clit lusciously under her thumb. Her white ass cheeks heaved; feverishly now she humped up her hips, lifting her ass back to meet her brother's fucking rhythm.
"Fuck my asshole," she whispered, obscenely and compulsively. "Unh… fuck me… fuck my ass… fuck my ass… uuhhh…"
Dave's stiff cock oozed cum freely now, coating the pink inner walls of her ass tumid with a sticky sheen of his jism. There was no pain at all anymore. With every thrust his prick made a slurping sound, bathing in the natural lubrication that seeped from his cum swollen nuts.
Dave gasped and delivered several, savagely brutal thrusts up his sister's ass. His balls bloated against her jiggling cheeks, and his long prick twitched to absolute stiffness inside her rubbery sucking asshole.
"Cumming," Dave grunted. "Oh fuck… there it is… ahhh…"
Dave came. His purplish dick head spewed jism wildly up her ass, squirting and spurting the white cream into the root of her belly. There was as much of his juice as there had been the first time. The cum spouted in gushers out of his silt, pouring into Debby's body until her asshole was filled with salty white cream.
Dan's cum put her over the edge. As her brother blew his wad, Debby felt a shaking warmth overpower her loins, drenching the hairy slit of her pussy, forcing her asshole walls around Dave's cock. Then the warmth exploded, and she was cuming too.
"Fuck me, Dave!" she shrieked. The mattress bounced as she bucked her ass furiously into his cock. "Fuck my asshole, unhhh, cuming now, cuuummmiiinnnggg!"
"Boy," Dave grinned, "was that ever good!"
Dave winced as he withdrew his cum-wilted cock from Debby's asshole. Debby moaned and lay silently on the bed. Already she was beginning to feel ashamed of herself for letting her brother fuck her, especially in the asshole, but she knew that the shame would not stop her from putting out to him again. From now on there would be another stiff cock to spread her legs for besides Steve's and Robbie's.