As a reaction to she sudden feeling, the suckers on the underside of the tentacle sucked themselves onto Jen's arm. The most amazing thing about this was that she could taste it. She was able to taste the whole length of her arm with her new found tongue. A crazy experience. The muscle inside the tentacle was almost like that of an arm. It wasn't as if Jen wasn't able to lift it up because of its weight. In fact, she could almost touch the bathroom's ceiling just by standing up.
Jen walked out of the bathroom, feeling her tentacle dangle outside of her mouth. She wondered if it would fit, while she was still able to breathe. Jen gulped. "It wouldn't be pleasant to have this thing dangle out of my mouth all day long." She thought.
Standing straight up, the tentacle reached down further than she first expected it to be. Before she had attached it to herself she managed to put the whole thing into her mouth, coiled. She also still had her normal tongue attached. That was gone right now. Jen concentrated, and somehow succeeded. Almost instinctively she coiled her tongue into her mouth, until it was all inside her again. She turned around and ran back to the bathroom mirror again to check it out...
Jen looked at her own face again. It felt as if the tentacle had filled up her whole mouth, but from the outside it looked different. When she looked at herself, she saw the Jen like usual. Nothing was different. She expected her cheeks to be completely bloated and her mouth to bulge, almost letting a tentacle escape. "What the..." It was then that she also realised she could talk with barely anything preventing her to do so. If she talked, you managed to see a glimpse of the mass inside of her mouth. It looked really amusing. When her mouth was closed, she looked like the innocent school girl she used to be, but once she stuck out her tongue...
She was the devil herself...
...
Saliva dripped off Jen's tentacle tongue in big drops as she stuck it out of her mouth just a couple of inches. She took a look at what she could do with it. Her tongue was still pretty thin, so it could fit into a lot of places...
An almost empty carton of milk standing right outside fridge caught her eye. She took it out of the fridge the moment she was searching for watermelons, since those were lying in the back of the fridge. Because of this she stated it hadn't gone sour yet, also because not even half an hour had passed. She twisted the cap off the milk carton and drank the last bits of it. She felt the cool liquid slide past her tongue into her throat, and couldn't help but notice how it only touched different spots on her tongue. Thus, the milk didn't run over her whole tongue like it used to.
Once she was done drinking threw the carton into the bin and looked away, but winced as her tongue was struck by a closing garbage can. She quickly opened the garbage can and pulled her tongue out, taking the carton with her once again. How come, her tentacle's suckers were still attached to its inside, and as she dropped the container into the garbage can, part of her tongue fell with it.
Jen was very fascinated about what the tentacle was able to do as her tongue, and realised how aroused she was by the idea of something like this as well. She stuck her tongue out of her mouth again and rubbed it over the front of her pants, her saliva creating a wet spot on it.
What she was about to do, was going to overstep all taboos in the history of humanity.