I've been testing out some different mods from lovers lab to see if they work with devourment. At this point I've got sexlab submit, sl defeat, paradise halls enhanced (pahe), and paradise halls home sweet home (hsh) working together close to bug free. There are a few non critical incompatibilities such as breaking submit by eating a npc with submits scripts running on it. (Just release npc from submit function via dialogue before you eat them.) Also, it seems like pah and pahe has some kind of incompatibility with advanced followers tweak, ufo, etc, so I'm not running any other sort of follower mod currently. Defeat and Pahe share similar functions, but I find pahe does most of them better. Both let you subdue npc by sneaking up on them.
What these kind of mods can do is help create scenarios for devourment to be more immersive in. For example, defeat lets you knockout and bag a sleeping npc, then you can sneak off with that npc in a bag on your back. Get to a safe distance and then release the knocked out npc on the floor and yield, restrain, release, etc, talk > force that npc to become a slave (hooks into pahe). Now you have a slave following that you have disarmed and bound depending on what you decide, and they will try to occasionally flee too. This is where hsh comes in, as that mod lets you then set up holding area's for these slaves and then decorate with bdsm furniture which you can make npc use. You can also sell slaves off for a profit.
Devourment can play into this in a myriad of different ways, and makes for a great ultimatum. You can even punish slaves with a short trip in the gut as i'm pretty sure damage raises their submission and fear rating. (Careful, it's easy to go overboard and turn it into a one way trip.) Stockpile food slaves! Travel snacks! Use your imagination!
On top of that there's a number of player home mods that were made for or work well with this sort of thing. You can disable player as victim with all the mods as well, they are very configurable.
https://www.loverslab.com/topic/61324-paradise-halls-enhanced-pahe-repacked-with-the-customary-addons/ I find pahe to do most of the functions better then defeat or submit.
https://www.loverslab.com/files/file/2845-paradise-halls-home-sweet-home/ Lets you set up slave houses and camps to store slaves at.
https://www.loverslab.com/topic/19941-sexlab-defeat/ For bagging sleeping npc. (Non lethal swallow works too, but I set a rule for myself awhile back of not using it.)
https://www.loverslab.com/files/file/247-sexlab-submit-01sep14-1133/ Only reason I use submit is because it has the unique function of being able to seduce and lure npc out of cities and holds.
https://www.loverslab.com/files/file/156-zaz-animation-pack-v70-2017-05-16/ The main bdsm animation pack and a requirement. There are others, but I haven't tested them yet.
https://www.loverslab.com/files/file/150-skyrim-sexlab-sex-animation-framework-v162-updated-jun-3rd-2016/ The sexlab framework, also a requirement.
https://www.nexusmods.com/skyrim/mods/54535 https://www.nexusmods.com/skyrim/mods/33462/ A couple of the homes.
Install with NMM or MO, you will need to run FNIS_for_users after installing or unisntalling this stuff.
There's a number of other nsfw mods that pahe states to have compatibility with, but I have not tested them yet.
Cheers!
links please. 
unless it's discontinued, or not working right or something, but even then if its a buggy mess I'll still try. 
(as well as a metric shitload of the process of elimination) to try to find the biggest pain in the ass persistent ctd that was following me through full rebuilds and more. (It would start happening a few real hours into a new game, and then it would ctd within 5-10 mins of loading any save after that and persisted into new games.) I still haven't identified what it was, but at least it's gone now. I currently have 131 mods installed and working almost entirely crash free.