Anna wasn't sure how long the vine fucked her urethra for, but it must have been hours. She was tired from the whole ordeal but couldn't sleep while the new vine kept thrusting into her. It was slowly working its way inside and was almost up to the full size of the vine which meant the next phase was almost going to begin. The only thing Anna could do was hang there suspended by the vines while slow methodical pulses of dilute paralytic were pumped into her ass, and the pressure on her womb intensified. Weak tremors ran through her body from the feeling of the vine bullying her urethra and eventually, the vine penetrated up to the first bulge on it's thickest portion, and it slowed down the rate it was plunging into her.
The slimy sap being produced by the vine was an excellent lubricant--not that there was a shortage since she was leaking some out of all of her holes and her body was also covered in it. It also had mild healing effects keeping Anna from getting sore while also allowing the plant to use her however it wanted whenever it wanted without risking her health. Slowly, after a couple strokes to work up to it, the vine began fucking her passage with the first bulge. Or at it was trying to anyways. It was too large to fit right away and Anna's body was straining to fit such a large object where it shouldn't go. Fitting the entire tapered end of the vine already took hours of fucking and this first bulge wasn't going to make its way inside her any time soon based on what she was feeling. The only sounds heard inside the plant were the wet smacks and pops of the bulge training her hole along with the muffled moans of Anna every time the bulge got a little further inside her.