Experimenting with FusionX (https://civitai.com/models/1651125?modelVersionId=1882322) and this lora (https://civitai.com/models/1637933?modelVersionId=1854028) getting some decent results.

Prompt if anyone else wants to give a shot or optimize it.

eat style. Anime-style video of a giant red skinned woman with a green haired woman wearing a bra and blue jeans inside of mouth. The green haired woman is lying on the giant red skinned woman's tongue. The red skinned closes her mouth fully swallowing the old green haired woman completely. As the red skinned woman swallows her hyoid bone and larynx elevates, followed by a visible wave-like bulge descending down the length of her throat