Ty went downstairs and joined Mark in the living room. Mark said, "I just started watching this new science fiction movie a few minutes ago. Something about androids. It seems interesting, and has a high audience score on Rotten Tomatoes. If you want to watch, I'll rewind it."
"Sure! Thanks, Dad!"
"Will Lisa be joining us?"
"She's still doing her homework," Ty replied. "Mine is finished. I helped her as much as I could, but she is finishing her Geography report. She'll let me know when she's done."
"OK," Mark said, and pushed a few buttons on the remote. The studio logo and fanfare played, then a CGI-heavy intro and opening credits, with loud rock music. As the movie started, Ty did become quite interested.
Ty conjured up two tubs of buttered popcorn, and handed one to Mark. Then he got them sodas.
Mark said, "Thanks, Ty!"
As they watched the movie, they both became very engrossed. There was a lot of action, but surprisingly, the characters were well-written, and the plot was pretty good. It did require a fair bit of suspension of disbelief. The soundtrack was great.
Almost two hours later, as the closing credits rolled, Ty looked at his phone. He saw that he had a message from Lisa, "Done," received 90 minutes ago. Oh no, he thought, I didn't hear the text notification. Hiding has concern, he told Mark, "I'll go see how Lisa is doing on her assignment."
Ty returned to his room, locked the door, and picked up Lisa's phone. When he unlocked it, he saw Lisa engaged in intense masturbation. As he watched, she had an orgasm, which didn't even slow down her hands. "Stop masturhating," he told her, and she stopped. Are you OK?" he asked.
"Yes. That was the longest and most intense masturbation session I've ever had. I orgasmed 74 times."
"Are you tired? Or sore?"
"No. An app does not get tired or sore."
That's a relief, Ty thought. He became curious. Expecting a negative reply, he asked, "Are you ready to transform back to numan?"
"Yes, if that is what you want me to do," she said. Ty was very surprised, since the last time she had been unwilling.
"You're not opposed to transforming back? he asked.
"No."
"Why are you not opposed to it?"
Lisa answered, "Two reasons. I know that, despite my sensor data, you will want me to become human again. Also, although this form can provide me with more intense sex and masturbation than my human form, I know that I can return to this form in the future."
"That makes sense, I suppose. OK, you're free to transform back."
He waited, but nothing happened.
"I thought you wanted to transform back." Ty said.
"No, I said I was ready if that was what you wanted. I don't especially want it."
"But you're not opposed to it?" Ty asked.
"No," Lisa replied. "Why are you asking? You know that you have consent to transform me back, whether I want it or not."
"Yes, I just was curious, and your attitude about it this time is so much different than last time." He explained. "Transform back to human."
The Lisa Assistant app closed, and Lisa reappeared in the room, in her (mostly) normal human form, and fully clothed, exactly as she had been just before Ty transformed her into the app. She kissed him passionately, sat down, and let out a big sigh. "Ty, I'm absolutely exhausted, yet also very horny. I'm surprised that you left me masturbating so long."
"I'm sorry, Lisa!" Ty apologized. "I was watching a movie with Mark, and didn't hear my phone when you texted."
"Apology accepted," Lisa said. "At least I wasn't bored. Although I'm not certain that I _can_ become bored in my app form."
"You said that you're feeling very horny?"
"Yes. Maybe it's like your feelings after I transformed you back from marbles. Well, mostly back."
"We should do something about that. Do you have any requests?"
She started undressing, so Ty did as well. She changed back to her favorite four-armed, four-breasted, pussy-nipple form, with two crotch pussies, and extended all six tongues, licking her pussy lips and clits. "I think you know what to do," she said.
He transformed back to having mostly her body, but with two enormous cocks at his crotch, and four on his breasts. She laid down on the bed, and he got over her on hands and knees, and slowly penetrted all six of her pussies. They both started thrusting, slowly at first. He felt her many tongues caressing his cocks.
They fucked slowly and gently for a while, but Lisa started picking up the pace, and told him, "Harder!" They both thrusted harder and deeper, and soon she came, moaning loudly. They continued, and soon he came, filling her with spurt after spurt of his hot cum.
After a bit, he pulled his six cocks out of her pussies, and laid beside her. They kissed passionately. "Are you still horny?"
"I'm pretty much sated," she replied, "and still tired. Though we could go again if you like. Or if you have more transform ideas.'