I put together my own list of alternatives to digestion, which I think would each be interesting to see. If you can think of others, please add them to the pile and let us know!
- Shrinking: A classic favorite of mine. The prey is in fact digested... but instead of it harming their body, the acid causes them to shrink in size. If upon being eaten the prey was the same size as the predator, the pred will later release a micro (at about the size of a mouse compared to a human). The prey can remain shrunken for the rest of their life, or might slowly grow back over time making the process repeatable.
- Partial digestion: The most obvious and close alternative. The stomach of the predator will still digest prey, but only down to a very low threshold, beyond which it will no longer do any harm. When the prey comes out, they will have only lost their hair and suffered burns across the surface of their body (the equivalent of a bad sunburn), as well as other bearable symptoms (like foggy vision) caused by limited acid damage to various organs.
- Energy digestion: Another simple alternative to classic digestion is energy digestion (not to be confused with soul digestion). The stomach of the predator does not harm the prey's body, but instead drains them of their energy. The prey only experiences extreme tiredness and blackouts without risk of actual death, while oppositely the predator gains an energy boost and feels more rested. If the setup allows it, the predator may additionally gain boosted magical powers or increased control of reality... meaning that the more prey they swallow and use as energy batteries, the more powerful and godlike they become.
- Absorption into the stomach walls: A more creepy yet interesting option. As the prey spends time inside the predator's stomach, they are slowly absorbed by the stomach walls and ultimately become amalgamated into them. The prey may either retain their form but remain trapped just behind the walls of the stomach, or simply be reformed into the walls under a special form. The prey is doomed to spend their entire life just sitting there and watching their pred's stomach pulsate in front of them. As an added bonus, they may become the ones moving the stomach walls to help digest the predator's food.
- Inability to survive outside the stomach: This is possibly my top favorite. As the prey spends time in the stomach of their predator, their body becomes more and more adjusted to the conditions there (breathable gasses, consuming the pred's digested food, other)... as a consequence, they become less and less able to survive in the conditions outside again, and may only be released for a limited if not non-existent amount of time. The prey is therefore forced to return to the stomach of their predator regularly after being regurgitated, or has no choice but to stay inside for the rest of their life as coming out would kill them.
- Mental and emotional enslavement: This is one of my favorite alternatives. Instead of digesting the prey's body or soul, the predator's stomach breaks down their mind, causing the prey to mindlessly fall in love with their predator and do their every bidding. Once released, the prey is under the full control of the predator who they now worship, and will do anything they're demanded in order to please their pred. This idea especially works if the effect isn't permanent and it takes time to subdue the prey's mind, as the prey must then be eaten periodically to be kept under the predator's control. Additionally the prey may be required to give up control of their mind willingly, knowing that they're never getting out of the stomach unless they submit to it.
So what are your own digestion alternatives, if you can think of anything not on this list? Most importantly, are there any vore writings or visual art using the concept of alternative consequences? Please list any you know of if so!