This thread is a great way to generate ideas and also share some erotic stories.
Personally, I would like to see more shota where the female is younger and have a less voluptuous figure. Not every shota fan has a breast- or mommy-fetish. Good storylines could include a fresh-out-of-college school teacher, or a next-door neighbor babysitter.
I'd also like to see a shota combined with a boyfriend/voyeur theme. Boyfriend wants to see his girlfriend seduced and maybe a little humiliated, so he secretly coaches the 2 boys she babysits what to do. He teaches them her weak areas, erogenous zones, and how to appeal to her instincts to satisfy their (initially innocent) boyish curiosity. When the action starts, he moves from one hiding place to another to try and watch. Yes, hidden cameras would show more, but the boyfriend should feel anxious that things are moving beyond his control.
In the school teacher genre, what I would like to see may be already happening but I am missing it in the Japanese dialogue. It used to be the standard storyline: teacher feels sorry for a quiet, sensitive, possibly bullied student, and reaches out to encourage or console him. Gradually she is seduced by her own emotions: one day, an embrace. Next day, a kiss on the cheek. Next time, he lays his head against her chest. Then one day he comes to her classroom after school. He's been bullied and hit. She cleans his wound, then holds him close, protectively, comforting. She kisses his forehead. He lifts up his face, adoring her, and kisses her lips. Embarassed, feeling foolish, he turns away, but she draws him to her, and the real kiss begins. She goes into teacher mode now, showing him first how to kiss, then gradually pulling his hand to her breast, and on that scene goes.
As you would guess, they start an affair. She teaches him more about sex. But the bullies find out and begin to secretly blackmail her. She is gang-r***ing, videoed, and threatened with posting on the internet. Now that she is trapped by her own actions, and must continue to submit to them over the weeks. Scenes would show them secretly touching her, feeling her in passing during school. Soon she is responding sexually to their molestations during and after school.
The teacher continues also having the affair with the sensitive boy, and now he has become her refuge from the predators. But one day the sensitive boy observes her through the window being gang-banged by the bullies, and is convinced it doesn't look like r***.
Now convinced she is a slut who has only used him, he orchestrates a final revenge scene where she will get what a slut deserves. He comes to her shyly, showing her pictures of bondage, asking if he could try them with her. She reluctantly consents, convinced of his innocent curiosity. But once she is bound and helpless, he shows her a picture taken through her window and unleashes his anger.
Enraged, he attacks her pussy with a dildo. He puts clips on her nipples. He flips her into a doggy position, and hangs weights from her nipple clips. He shoves another dildo into her ass, so she has two in her. Then he switches on the vibrators in the dildos, causing her to begin humping the air while her breasts dangle and sway beneath her. She now looks like the slut he believes her to be, and that she fears she is becoming.
Next he leaves the room and returns with a younger boy (shota-style) for her to suck in humiliation. When that is over, he brings in a huge, black custodian (who we would have seen earlier, working at the school) to to have his massive cock sucked. When he cums, the student takes his turn in her mouth, then removes the dildos and fucks her from behind.
Final scene: after he cums on her ass, he gets down by her face to whisper in her ear. Her front torso has collapsed on the floor, while her ass is still up in the air. We don't hear what he is whispering, but she begins to shake and sob. The student opens the door and a big, intimidating dog enters, its attention aimed at the teacher on the floor. The camera cuts to her face looking up from the floor, her ass still in the air, with an expression of fear and defeat. Freeze the frame with that... the end.