No-one else was in the gym, which didn't set Susan's mind at ease. While she hadn't minded practicing her martial arts alone before, after being attacked in the forest she had tried to avoid being completely by herself whenever possible. Still, she needed to practice; the stakes here were far worse than just a few bruises if she lost a fight. In any case, she hadn't yet seen any of the monsters openly in any of the public buildings, and the room was open enough that she was pretty sure she'd see any attacker before it got close to her. Besides, they can't all either be so tough that I can't beat them or catch me in a situation where I can't fight back.

Steeling her resolve, she began stretching in preparation for her workout. As she did so, her tight white tank top and red shorts gave any hidden observers a good view of her figure.

Siferus had been following poor Susan since she had left the forest, curious about her...then he got horny.

He decided that a direct approach to this prey would be bad, so he skittered about the gym ceiling, threading every exit closed, preventing her escape and anyone interrupting his fun.

After that was done, he got right above her and spat his thread at her feet, keeping her from running.

Waiting for fear and confusion to take in her mind, smiling. The prey was caught. He could do as he pleased.

She'd had a vague sense of something following her since she had cut through the forest, but she'd written it off as nerves and bad memories when she couldn't see any sign of a pursuer. Caught up in her workout and confident that no-one could sneak in without her noticing, she'd missed Siferus's sealing the doors.

She couldn't miss his thread hitting her feet, however. After a few tries to pull free proved the thread too strong for her to break, she started looking around for her assailant as well as she could.

Siferus remained hidden to her, however, because she didn't think to look up. He was hoping for fear and confusion to take over, but, while both were present, anger at her hidden attacker was the strongest emotion she was feeling. "Okay, I know you're in here. Show yourself!"

Siferus plummeted from the ceiling right behind Susan.

Grabbing her with his tentacles, he lifted her off the ground.

"Ask, and you shall recieve."

Some of his tentacles start tearing at her clothes while others began spreading his chemical on her exposed flesh.

"Don't worry, it'll feel good soon."

As the creature landed behind her and grabbed her before she could react, Susan cursed herself mentally. She knew there were inhuman things on the island; why wouldn't there be at least one that could walk on the ceiling?

"Don't worry, it'll feel good soon."

"Not likely. Let me go, you fucking bastard!" She grabbed hold of one of its tentacles and thrashed in its grip. If she could get her feet on the ground again, she'd try throwing the thing. Hope it's not as undamageable as that snake-woman was.

She also hoped she could get a foothold quickly; she could feel herself beginning to get aroused from the chemical. The last thing she wanted was to again be stuck in an artificially horny state from some weird monster-goop.

Siferus lifted her up off higher to make sure she wasn't going anywhere. His tentacles started ripping what little clothes, giving her a triple dose of the chemical, beginning to touch her sensitive body.

"You're a rather rowdy one. I'm going to have some real fun with you."

"Put me down, you freak! I'll kill you!" Susan thrashed futilely, trying to get any of her limbs free from the creature's tentacles. The thing had been both smart enough to realize what she was trying to do and not so overconfident that it didn't try to stop her, or it had been lucky enough to counter her actions by chance. Either way, her only chance now was to be able to strike the thing.

As the chemical's effects began to take over, her body shivered in pleasure at the monster's touch. "Ah... aaahnn... What... what did you do to me?"

Siferus chuckled at the directness of the girl.

"Well, there's a chemical agent that my tentacles secrete. Once it gets into your blood, about 3 orgasms is what it takes to get the body to relax."

As two of his tentacles spread her legs open, one tentacle prodded against her pussy lips.

Giving the fighter girl another dose, he knew she would crack. They always do.

"Feeling good yet?", his tentacles still teasing her body, playing with her breasts, thighs, waist, and pussy, ready to invade her body.

She squirmed in his grasp, trying to avoid the tentacle preparing to violate her. "Uuhnn... No... ohh... I don't... want... this... aaah." Despite her denials, it was obvious that her body, at least, was quite ready.

Siferus' tentacle pushed inside Susan, starting to slowly violate her, gradually speeding up to an incredible pace as his tentacles squeezed her breasts, the ends rubbing her nipples.

Pulling her close to him, moving her arms behind her to avoid any potential punches, he whispered to her.

"Your mouth says no, but your body says yes. The body doesn't lie."

The tips of the tentacles around her legs started caressing her inner thighs, attempting to stimulate her all the more.

"Aaaaaah! Nnnnnn... No! Stop!" Susan twisted, trying to get loose from the tentacles.

As it drew her close, she saw an opportunity. When it had whispered its taunt, she drew back her head as much as she could, then thrust forwards, headbutting the monster as hard as she could. With the distractions of how it was stimulating her, that wasn't anything like as hard as she'd intended.

Siferus, annoyed at being struck, shoved his tentacle deep inside Susan and released another dose inside her. He slapped Susan across her face with another tentacle.

"All that did was annoy me. I'm gonna rough you up while I fuck you now."

After the chemical was absorbed into her pussy, his tentacle started fucking her hard, fast and deep.

"Can you feel it yet? That last bit of control getting ready to leave you?"

He fully intended to shove a tentacle into her mouth as soon as soon as she answered.

She turned her head, trying to keep the tentacle away from her mouth. At the moment, she could still keep her mouth closed around the moans his treatment was forcing from her, but she doubted that would last for long.

At his question, she shook her head in denial even as her body, overcome by the chemical's effects, started to thrust against the tentacle inside her.

Siferus was taking delight in how Susan's body had betrayed her.

Grabbing her jaw, holding her head still to shove a tentacle into her mouth. When his tentacle pushed her lips, he began fucking her mouth, his tentacle going all the way to the back of her throat.

"You may deny that you want this release, but your body is demanding this. If I didn't know better, I'd say your body likes it this way."

Siferus made sure that Susan noticed his cock getting erect very rapidly, his intent becoming clear.

Susan was only able to glare at him for the suggestion that her body might like this. His hold on her jaw prevented her from trying to bite the tentacle in her mouth, and it was all she could do to prevent her gag reflex from kicking in when it hit the back of her throat.

She still struggled against his hold as well as she could, but her strength lessened as she lost control of her reactions to his assault.