Alright so this one is a pain if you don't really understand how to use Latent Couple or Regional Prompter.(I understand the basics) If you know your way around one of those then you can do some cool stuff with this. I tried using multiple character Loras but the results were either overcooked or just bad. Adetailer for the faces is also a good idea.

Can likely produce an arbitrary number of lines but 4 seemed like a happy medium for the size I was generating at. Some times produces multiple faces per row but that seemed to be maybe 25% of the time when I prompted for a number of subjects.

Seeing the full prompt is a bit of a pain on the website so here is the title image's full prompt:

smug, futanari, small_penis, solo, <lora:AekaIL_V1:0.7> masaki_aeka_jurai
smug, futanari, ejaculation, huge_penis, solo, penis_chart,
dark_skin, futanari, veiny_penis, penis_chart,
blush, futanari, tiny_penis, penis_chart,
<lora:FutaPenisChart_epoch_8:0.99> penis_chart, futanari, 4girls,, masterpiece,best quality,absurdres, amazing quality
Negative prompt: bad quality, worst quality, worst detail, sketch, censored, watermark, signature, artist name, patreon_username, patreon_logo, worst aesthetic, low quality, lowres
Steps: 25, Sampler: DPM++ 2M SDE, Schedule type: Karras, CFG scale: 5, Seed: 1870335105, Size: 1152x896, Model hash: aeabcb22f6, Model: obliviousMix_v10, Denoising strength: 0.25, Original Size: 1152x896, ADetailer model: face_yolov8n.pt, ADetailer confidence: 0.3, ADetailer dilate erode: 4, ADetailer mask blur: 32, ADetailer denoising strength: 0.4, ADetailer inpaint only masked: True, ADetailer inpaint padding: 32, ADetailer use inpaint width height: True, ADetailer inpaint width: 1024, ADetailer inpaint height: 1024, ADetailer version: 24.11.1, Hires Module 1: Use same choices, Hires CFG Scale: 5, Hires schedule type: Karras, Hires upscale: 2, Hires upscaler: 4xUltrasharp_4xUltrasharpV10, Lora hashes: "AekaIL_V1: 715fb91b89b8, FutaPenisChart_epoch_8: 60f9e8b4b42c", forge_couple: True, forge_couple_compatibility: True, forge_couple_mode: Basic, forge_couple_separator: \n, forge_couple_direction: Vertical, forge_couple_background: Last Line, forge_couple_background_weight: 0.5, forge_couple_common_parser: { }, Version: f2.0.1v1.10.1-previous-635-gf5330788, Module 1: flatpiecexlVAE_baseonA1579.vae, Hashes: {"lora:AekaIL_V1": "532dbb1611", "model": "aeabcb22f6"}