Fill another hole (urethral penetration)

Kasumi was feeling extremely dehydrated at this point. She had sweat out or squirt just about every liquid her body could let go of, and she could feel her consciousness starting to fade, despite the overwhelming stimulus she was receiving.

She fought to stay awake and enjoy every orgasm. Her body was a fuck toy, and she wanted to live forever conscious of this bliss.

Sensing what she needed, the tentacle like protrusion of rubber from her mouth grew and made its way to the nearby bathroom sink, turned it on, and began sucking up the water. The feeling of it running down and into her, through the seemingly now sentient dildo, both woke her back up, and sent her into more swaths of pleasure. She felt it fill her insides, absorbing into her as it needed to; and once that was complete the rest flowed through the erogenous trail of her insides until it began filling her bladder.

Kasumi felt the pressure building of another squirting orgasm from her refilling bladder, and her mind swooned at the thought of that release as the climax built back up inside her. More liquid siphoned its way down, and the feeling continued to grow until she couldn't take it anymore and the wave hit her.

Only the release stopped almost as soon as it began. There was only a small splash of liquid that squirted out from under the latex before it stopped and the pressure built back up. Kasumi pushed and tensed her muscles trying to finish the release only to realize it was being blocked somehow.

Then she began to feel the latex slowly worm its way up her urethra, fighting against the pressure of her bladder until it finally entered completely inside. Once inside the tip of the tendril spread itself, locking it in place, before continuing to expand inward.

Kasumi could also feel a different pressure, as the tendril slowly grew bigger, dilating her urethra bit by bit as it the end grew into a bulb within, and increased its size in unison. She cried a little at first at the pain of the stretching and expansion of her bladder until whatever magic worked the rubber, also worked into her body around it. The pain was quickly replaced with pleasure as her urethra continued to stretch around the now half inch diameter, and growing, latex rod.

The pressure didn't stop, though. Her bladder continued to fill, as the tentacle from her mouth kept drinking water, and the bulk of rubber didn't allow any escape. She could already see a small bulge at the base of her belly where her bladder was growing. This went on slowly for a very long minute as the rod grew up a full inch and a half diameter and the bulb became the size of a softball.

Just when Kasumi thought she couldn't take it any longer the entire thing opened up, and squirted the contents of her bladder like a fire hose across the bathroom floor. Sparks of light filled her vision as release and climax hit her harder then it ever had. Despite the seizure of muscle her entire body went slack as the energy to contain her orgasm overwhelmed her mind.

'I'm... I'm your... Toy... Fuck me... Keep fucking me... Don't... Don't stop' She couldn't talk, but her mind contained nothing but the thoughts of endless orgasm, and the desire for more.

Her urethra remained agape, as the now hollow rod remained penetrated deep within. The bulge in her bladder was also hollowed out, now allowing the water coming down her intestinal track to flow freely through, while leaving the large visible bulge in her belly, just above her clit.

Kasumi passed out shortly after, in the middle of orgasm, as her body needed the rest. The tentacle at the sink stopped sucking in more water and slunk down to the ground, waiting for her to wake again and desire more.