She cracked open the old hentai book and the pages glowed. Before she could blink, tentacles shot out and yanked her inside. One thick, veined tentacle slammed between her thighs and rammed straight into her pussy, no warning, just brutal stretch. It was ridged and slimy, pounding deep on the first thrust, her cunt walls gripping it tight as it fucked her hard and fast. She grunted, legs spread wide, juices already dripping down her thighs from the sudden invasion.
Another tentacle whipped around and slapped her ass before shoving into her asshole, double-stuffing her without mercy. The two limbs worked in rhythm, one plunging into her pussy while the other drilled her ass, stretching both holes raw. Her tits bounced as smaller tentacles wrapped around them, squeezing hard and pinching the nipples until they stood stiff and sore. A third tentacle pushed past her lips and down her throat, fucking her mouth with the same rough pace, making her gag and drool around the girth.
She came fast, pussy clenching and squirting around the tentacle buried inside her. The slime-coated limb kept thrusting through her orgasm, pounding her sensitive cunt until she shook. Cum from the tentacles started pumping out in thick ropes, flooding her pussy and ass, overflowing and running down her legs in hot, sticky streams. The one in her throat pulled back just enough to shoot a load across her tongue and face, leaving her mouth coated and messy.
They flipped her onto all fours next. Fresh tentacles replaced the spent ones, one driving back into her cum-slick pussy while another slapped her clit with every thrust. Her asshole got filled again, stretched wide around a thicker tentacle that twisted and pumped. She moaned loud and filthy, pushing back onto them, begging with her body for more. The tentacles obliged, fucking her harder, the wet sounds of slime and cum filling the air as they used every hole.
A new tentacle coiled around her waist and lifted her, suspending her in the air so they could fuck her from every angle. One slammed up into her pussy from below, another into her ass, while two more wrapped her tits and sucked the nipples raw. She came again, body convulsing, holes spasming around the invading limbs. More cum flooded her, bloating her belly slightly with the sheer volume before it leaked out in messy spurts.
The tentacles didn't stop.

They rotated her positions, fucking her on her back with legs pinned wide, then bent over with her face pressed into the ground while they took turns in her holes. Every thrust was direct and filthy, the tentacles cumming inside her again and again until she was a dripping, used mess of slime and seed. Her clit throbbed from constant slapping and rubbing, forcing orgasm after orgasm until her voice was hoarse from screaming.
Finally the tentacles eased, lowering her gently to the ground. She lay there panting, holes gaping and leaking thick cum, body marked with red welts and slime trails. The hentai world had delivered exactly what the book promised: raw, nonstop fucking with no limits. She smiled through the mess, already hungry for the next round.