Your categories are insufficient.
1. Written stories not centered on, alluding to but not explicitly depicting adult-child sex, with no illustrations.
1b. Written stories not centered on, alluding to but not explicitly depicting child-child sex, with no illustrations.
1c. Written stories not centered on, but explicitly depicting adult-child sex, with no illustrations.
1d. Written stories not centered on, but explicitly depicting child-child sex, with no illustrations.
1e. Written stories centered on, but not explicitly depicting adult-child sex, with no illustrations.
1f. Written stories centered on, but not explicitly depicting child-child sex, with no illustrations.
1g. Written stories centered on and explicitly depicting adult-child sex, with no illustrations.
1h. Written stories centered on and explicitly depicting child-child sex, with no illustrations.
1i. Written stories not centered on, alluding to but not explicitly depicting adult-child sex, with drawn or CG illustrations.
1j. Written stories not centered on, alluding to but not explicitly depicting child-child sex, with drawn or CG illustrations.
1k. Written stories not centered on, but explicitly depicting adult-child sex, with drawn or CG illustrations.
1l. Written stories not centered on, but explicitly depicting child-child sex, with drawn or CG illustrations.
1m. Written stories centered on, but not explicitly depicting adult-child sex, with drawn or CG illustrations.
1n. Written stories centered on, but not explicitly depicting child-child sex, with drawn or CG illustrations.
1o. Written stories centered on and explicitly depicting adult-child sex, with drawn or CG illustrations.
1p. Written stories centered on and explicitly depicting child-child sex, with drawn or CG illustrations.
1q. Written stories not centered on, alluding to but not explicitly depicting adult-child sex, with photo illustrations using only adult actors.
1r. Written stories not centered on, alluding to but not explicitly depicting child-child sex, with photo illustrations using only adult actors.
1s. Written stories not centered on, but explicitly depicting adult-child sex, with photo illustrations using only adult actors.
1t. Written stories not centered on, but explicitly depicting child-child sex, with photo illustrations using only adult actors.
1u. Written stories centered on, but not explicitly depicting adult-child sex, with photo illustrations using only adult actors.
1v. Written stories centered on, but not explicitly depicting child-child sex, with photo illustrations using only adult actors.
1w. Written stories centered on and explicitly depicting adult-child sex, with photo illustrations using only adult actors.
1x. Written stories centered on and explicitly depicting child-child sex, with photo illustrations using only adult actors.
1y. Written stories not centered on, alluding to but not explicitly depicting adult-child sex, with photo illustrations using minor actors.
1z. Written stories not centered on, alluding to but not explicitly depicting child-child sex, with photo illustrations using minor actors.
1aa. Written stories not centered on, but explicitly depicting adult-child sex, with photo illustrations using minor actors.
1bb. Written stories not centered on, but explicitly depicting child-child sex, with photo illustrations using minor actors.
1cc. Written stories centered on, but not explicitly depicting adult-child sex, with photo illustrations using minor actors.
1dd. Written stories centered on, but not explicitly depicting child-child sex, with photo illustrations using minor actors.
1ee. Written stories centered on and explicitly depicting adult-child sex, with photo illustrations using minor actors.
1ff. Written stories centered on and explicitly depicting child-child sex, with photo illustrations using minor actors.
2. Audio only readings or performances of stories not centered on, alluding to but not explicitly depicting adult-child sex, involving only adult actors.
2b. Audio only readings or performances of stories not centered on, alluding to but not explicitly depicting child-child sex, involving only adult actors.
2c. Audio only readings or performances of stories not centered on, but explicitly depicting adult-child sex, involving only adult actors.
2d. Audio only readings or performances of not centered on, but explicitly depicting child-child sex, involving only adult actors.
2e. Audio only readings or performances of centered on, but not explicitly depicting adult-child sex, involving only adult actors.
2f. Audio only readings or performances of centered on, but not explicitly depicting child-child sex, involving only adult actors.
2g. Audio only readings or performances of centered on and explicitly depicting adult-child sex, involving only adult actors.
2h. Audio only readings or performances of centered on and explicitly depicting child-child sex, involving only adult actors.
3. Audio only readings or performances of stories not centered on, alluding to but not explicitly depicting adult-child sex, involving minor actors participating in scenes with sexual dialogue.
3b. Audio only readings or performances of stories not centered on, alluding to but not explicitly depicting child-child sex, involving minor actors participating in scenes with sexual dialogue.
3c. Audio only readings or performances of stories not centered on, but explicitly depicting adult-child sex, involving minor actors participating in scenes with sexual dialogue.
3d. Audio only readings or performances of not centered on, but explicitly depicting child-child sex, involving minor actors participating in scenes with sexual dialogue.
3e. Audio only readings or performances of centered on, but not explicitly depicting adult-child sex, involving minor actors participating in scenes with sexual dialogue.
3f. Audio only readings or performances of centered on, but not explicitly depicting child-child sex, involving minor actors participating in scenes with sexual dialogue.
3g. Audio only readings or performances of centered on and explicitly depicting adult-child sex, involving minor actors participating in scenes with sexual dialogue.
3h. Audio only readings or performances of centered on and explicitly depicting child-child sex, involving minor actors participating in scenes with sexual dialogue.
4. Animated video not centered on, alluding to but not explicitly depicting adult-child sex, without sound.
4b. Animated video not centered on, alluding to but not explicitly depicting child-child sex, without sound.
4c. Animated video not centered on, but explicitly depicting adult-child sex, without sound.
4d. Animated video not centered on, but explicitly depicting child-child sex, without sound.
4e. Animated video centered on, but not explicitly depicting adult-child sex, without sound.
4f. Animated video centered on, but not explicitly child-child sex, without sound.
4g. Animated video centered on and explicitly depicting adult-child sex, without sound.
4h. Animated video centered on and explicitly depicting child-child sex, without sound.
5. Animated video not centered on, alluding to but not explicitly depicting adult-child sex, voiced only by adult actors.
5b. Animated video not centered on, alluding to but not explicitly depicting child-child sex, voiced only by adult actors.
5c. Animated video not centered on, but explicitly depicting adult-child sex, voiced only by adult actors.
5d. Animated video not centered on, but explicitly depicting child-child sex, voiced only by adult actors.
5e. Animated video centered on, but not explicitly depicting adult-child sex, voiced only by adult actors.
5f. Animated video centered on, but not explicitly depicting child-child sex, voiced only by adult actors.
5g. Animated video centered on and explicitly depicting adult-child sex, voiced only by adult actors.
5h. Animated video centered on and explicitly depicting child-child sex, voiced only by adult actors.
6. Animated video not centered on, alluding to but not explicitly depicting adult-child sex, including minor voice actors participating in scenes with sexual dialogue.
6b. Animated video not centered on, alluding to but not explicitly depicting child-child sex, including minor voice actors participating in scenes with sexual dialogue.
6c. Animated video not centered on, but explicitly depicting adult-child sex, including minor voice actors participating in scenes with sexual dialogue.
6d. Animated video not centered on, but explicitly depicting child-child sex, including minor voice actors participating in scenes with sexual dialogue.
6e. Animated video centered on, but not explicitly depicting adult-child sex, including minor voice actors participating in scenes with sexual dialogue.
6f. Animated video centered on, but not explicitly depicting child-child sex, including minor voice actors participating in scenes with sexual dialogue.
6g. Animated video centered on and explicitly depicting adult-child sex, including minor voice actors participating in scenes with sexual dialogue.
6h. Animated video centered on and explicitly depicting child-child sex, including minor voice actors participating in scenes with sexual dialogue.
7. Live-action video not centered on, alluding to but not explicitly depicting adult-child sex, using only adult actors or special effects.
7b. Live-action video not centered on, alluding to but not explicitly depicting child-child sex, using only adult actors or special effects.
7c. Live-action video not centered on, but explicitly depicting adult-child sex, using only adult actors or special effects.
7d. Live-action video not centered on, but explicitly depicting child-child sex, using only adult actors or special effects.
7e. Live-action video centered on, but not explicitly depicting adult-child sex, using only adult actors or special effects.
7f. Live-action video centered on, but not explicitly depicting child-child sex, using only adult actors or special effects.
7g. Live-action video centered on and explicitly depicting adult-child sex, using only adult actors or special effects.
7h. Live-action video centered on and explicitly depicting child-child sex, using only adult actors or special effects.
8. Live-action video not centered on, alluding to but not explicitly depicting adult-child sex, using minor actors en scene.
8b. Live-action video not centered on, alluding to but not explicitly depicting child-child sex, using minor actors en scene.
8c. Live-action video not centered on, but explicitly depicting adult-child sex, using minors en scene, engaging only in simulated sex.
8d. Live-action video not centered on, but explicitly depicting child-child sex, using minors en scene, engaging only in simulated sex.
8e. Live-action video centered on, but not explicitly depicting adult-child sex, using minors en scene.
8f. Live-action video centered on, but not explicitly child-child sex, using minors en scene.
8g. Live-action video centered on and explicitly depicting adult-child sex, using minors en scene, engaging only in simulated sex.
8h. Live-action video centered on and explicitly depicting child-child sex, using minors en scene, engaging only in simulated sex.
9. Live-action video not centered on, but explicitly depicting adult-child sex, using minors performing real sex acts.
9b. Live-action video not centered on, but explicitly depicting child-child sex, using minors performing real sex acts.
9c. Live-action video centered on and explicitly depicting adult-child sex, using minors performing real sex acts.
9d. Live-action video centered on and explicitly depicting child-child sex, using minors performing real sex acts.
10. Non-narrative or non-contextual drawn or CG illustrations alluding to but not explicitly depicting adult-child sex.
10b. Non-narrative or non-contextual drawn or CG illustrations alluding to but not explicitly depicting child-child sex.
10c. Non-narrative or non-contextual drawn or CG illustrations explicitly depicting adult-child sex.
10d. Non-narrative or non-contextual drawn or CG illustrations explicitly depicting child-child sex.
10e. Non-narrative or non-contextual photographic illustrations alluding to but not explicitly depicting adult-child sex using adult actors.
10f. Non-narrative or non-contextual photographic illustrations alluding to but not explicitly depicting child-child sex using adult actors.
10g. Non-narrative or non-contextual photographic illustrations explicitly depicting adult-child sex using adult actors.
10h. Non-narrative or non-contextual photographic illustrations explicitly depicting child-child sex using adult actors.
10i. Non-narrative or non-contextual photographic illustrations alluding to but not explicitly depicting adult-child sex including minor actors.
10j. Non-narrative or non-contextual photographic illustrations alluding to but not explicitly depicting child-child sex including minor actors.
10k. Non-narrative or non-contextual photographic illustrations explicitly depicting adult-child sex including minor actors engaging only in simulated sex.
10l. Non-narrative or non-contextual photographic illustrations explicitly depicting child-child sex including minor actors engaging only in simulated sex.
10m. Non-narrative or non-contextual photographic illustrations explicitly depicting adult-child sex including minor actors performing real sex acts.
10n. Non-narrative or non-contextual photographic illustrations explicitly depicting child-child sex including minor actors performing real sex acts.
I did not feel that there is any useful reason to distinguish between real or simulated sex acts in situations where only adults were involved, so those were omitted.