Raven had been left home alone at the titans base, the rest heading out for whatever it was they had planned. She didn't care. She was happy sat quietly reading one of her piles of new books, which she had been looking forward to all week. She had been left in blissful peace for an hour before she swore she felt something on her back.
Before she could so much as blink, she found herself pulled into the air, something wrapping around her mouth gagging her, while others wrapped around her arms and legs, holding her spread out and facing the ceiling. Out of the corner of her eye, she could see the things holding her hostage suddenly were, tentacles?
Keeping her suspended, she watched in shock as more tentacles began wrapping themselves around her, keeping her limbs spread and leaving her covered in a glistening layer of slime, before the real assault began. One weaved its way between her legs, purposely rubbing itself against the crotch of her suit, the slime just making it that much easier to feel as it pressed against certain sensitive areas, earning a small gasp from the captured heroine. THis was made worse when they discovered the slime made it so she could feel everything through her suit and found her tits particularly sensitive, especially her hardening nipples. Before she knew it, they were squeezing and massaging her tits, ass and pussy with slime and appendages, Raven barely able to keep her moans muffled through the one still around her mouth.
She began to squirm however, when one of the tentacles got adventurous, pulling her suit aside and exposing her dripping (much to her embarrassment) core, causing her to gasp louder as it began playing with her, feeling for all the world like someone with a particularly dexterous tongue was eating her out. She was beginning to pant with excitement, when she felt the zipper on her back been pulled down, the slimy tentacles finding their way under her suit and onto her bare skin. Two covered her chest, one wrapping itself around each breast, the tip flicking her nipples. One snaked down and began probing her clit, the new assault leaving her out of breath and moaning.
Without warning, she felt a larger tentacle slide up and bury itself between her legs. With how excited she was and all the slime, it thrust itself straight in without problem, filling her up so much her back arched at the violation, her mouth opening in a silent scream. The one around her mouth took that moment to force itself in her mouth, a rhythm quickly established where the alternated thrusting into her, giving her a tentacle spit roasting in mid air. Despite the size of what had just begun fucking her mouth, the slime made it easy to slide down, the pleasure she was getting made her moan while seemed to excite the one in her mouth and make the one in her pussy go harder. Her body clenched and shuddered in it's grasp as she came, but it didn't show any sign of stopping, in fact it was pulling her suit further out of the creatures way, and Raven found herself getting fucked in all three holes by those flexible tentacles, gasping with pain at first as her asshole was penetrated, but like with her other holes, the slime seemed to make everything fit so much easier and feel so much better than it should, so her brief but pointless struggles did not last long..
She found herself lowered down to the bed, looking down in confusion, she saw a mass of tentacles that appeared to be the creature itself, that parted and exposed what looked very much like a very erect cock.
This was confirmed seconds later, when the softer tentacle between her legs was replaced with this alien member, keeping her securely bound and wrapping itself around her more as it fucked her, completely enveloping her from the waist down in a mass of writhing tentacles. She was covered head to toe in thick layers of slime by now, the tentacles exploring every inch of her, her body betraying her by reacting when they found where she liked to be touched; her mouth and ass still been pounded as well.
She came for the second time shortly before it did, pulling out and spraying its hot cum over her, adding to the slime that had soaked her suit completely. She through for a second she might have respite, but the tentacle from before buried itself in her wet and increasing ravaged pussy, until she felt herself bucking and cumming for the third time, struggling to free herself from this unending assault.
Next she found herself being held upside down, legs bent and arms held behind hard back, she only realised what it had in mind as the tentacle in her mouth came out with a soft, wet popping noise and she was lowered head first to the things already hardening member. It kept roaming her body, her lower holes been fucked by the tentacles, while it moved her mouth up and down on it's hard appendage, Raven moaning with pleasure and shame as she came for a fourth time, whimpering and writhing from pleasure in it's grasp, as it kept using her mouth like a sex toy. This only made it more excited and move faster, leaving her with a choice between swallowing its cum or choking.
She came a fifth time while it let her recover her breath, barely able to let out more than gasps or release from having various things shoved down her throat for the last, however long this assault had been going on.
She was wondering how much stamina this thing had, it had been using her like this for what felt like hours, surely her teammates must be home anytime soon…
As if sensing her thoughts, she found herself sucking on tentacle again, while it moved to her desk and bent her over. Oh no, she thought, one place it hasn't…
Her fears were confirmed as the creature began fucking her ass with it once more erect cock, her screams muffled, her legs pulled apart and the slime allowing it to thrust into her withut much resistance, going wild as it lost itself in a frenzy. It would have hurt a hell of a lot more if it hadn't stuck a tentacle up there for however long it was, stretching her out and lubing her up ready. As it was she felt herself reach climax for a 6th time, only kept from collapsing by the tentacles that held her there.
It was long before the creature joined her, she felt it leave her, warmth covering her back and coughing as the tentacles squirted out more slime as the creature finally finished, the various tentacles wrapped around her ejaculating slime as the creature orgasmed. Leaving her slumped over her desk and dripping in ever more slime and body fluids, her body shuddering as the tentacles that had been roaming beneath her suit and holding her in place slide off her and released her. Her body protesting at all it had been put through over the last two hours! She gasped with surprise as she looked at the clock, not believing that it had gone on for that long and that both of them hadn't passed out sooner.
Turning around and resting her back against the desk, she smiled at Beast Boy, who having run out of energy, had reverted back to his usual form, sprawled out on her floor naked and panting with exhaustion. When he had found her stash of tentacle porn, rather than make fun of her, he offered to find a suitable monster and transform into it for her.
He hadn't warned her when, which had made it so much better she thought, as she crawled over to curl up with him, not minding the mess they were both covered in.
"I knew you'd enjoy that you perv" she growled happily in his ear as they laid there, "maybe next time I can wear a schoolgirl outfit, so you can be a proper tentacle monster and fuck an innocent little girl. I do have the outfit already..."
"Raven, honey, I love you and all, but I am definitely going to need to recover from that, I never expected you to last so long…"
"Don't worry baby, next time it's your turn to choose the fantasy, but first, we should probably clean up before the others come back and find my room covered in this slime