Got some potentially controversial requests for the list.
Morticia Truth-or-Dare footlicking extended - Timer goes off but Morty doesn't stop, just play the scene on for longer. Morty could comment on how wild it is that she let him indulge kink, while she thinks about how maybe she likes it too. Could include a choice about feet here - skip option means Morty feels uncomfortable and cuts it short, extended scene can play out otherwise.
Summer Bracelet scene - Mutual masturbation. Morty confronts summer to get points, they both jack off with dirty talk. If you wanted to do an image edit (I don't think it's necessary) you could maybe use morty's cock from the Beth shower masturbation scene. Bracelet 'erases memory or some bullshit', i'm sure, so you could use that and not have to change the narrative of following scenes. Or, If you wanted this could be referenced in other events - for example, cock-shock-and-awe when seeing morty unfurled at full-mast, then needing to downplay it and try and talk up Ethan (possible netori/cuck opportunities here: "I'm pretty sure I saw Ethan get a hard-on that time we were making out, and NO WAY was it that big...")
Or/and she could talk a big game about wanting to suck morty off, but then needs to downplay it during blowjob practice. That's all probably unecessary to multiply the work unless it would be easy to add another dialogue flag like that.
Beth Sleep Molest - She can wake up and have a (semi) consensual version of the rape scene, would be hotter. I think just adding open eyes and text edits will suffice. Same followup scene, she was drunk and can't remember.
Now, on to what it necessary. More piss. Optional piss scene variants for every girl, I cannot stress enough how critical this is. Normies can opt out as part of Tricia's blackmail scene, or opt in "That was scary... and hot! Scary and hot. Hot... but she's still scary."
Beth - Boobjob scene, make some of the jizz yellow, bam. She's drunk and thot be cray-cray when she hits the bottle. Could play into cucking Jerry "I bet that Total-Recall reject wouldn't do that!"
Summer - If we ever get no-condom condom blow (catchy patch title), put it in there as a text edit of the deepthroat option - morty empties his bladder in post coital bliss while still holding her head, she just thinks it's jizz and says something like "You fucking asshole! I could have died! You could have drowned me with your jizz, you.. you dick! God, my stomach feels full - GET OUT!"
Morticia - Foot fucker - she pees, he pees, you get the drill. Image Edit of the facial after the blowjob path. Morticia loses control of her bladder and Morty 'punishes her'.
Jessica - Joy ride - Rick always takes his piss-bottle with him and the car refuses to allow anyone to use its toilet functionality. Caught in a sticky situation on a first friend date, Jessica does what any good girlfriend would do - drinks his piss. Maybe make a joke of how she has done it with her boyfriends and dad before and it's no big deal - and calling back to tricia being afraid to be called piss-girl but jessica gets away with it by being even hotter.
Reka - Furry Secret - image edit of final blowjob. After the orgasm, Morty needs to pee, Reka still thinks she's being blackmailed. Just do an edit of the cumshot but yellow. Add a joke about her needing to throw up and this having to stay a secret.
Nancy - Rough BJ - Tricia convinces her that it's awesome and that she needs to let Morty piss on her face. Since Nancy is a sub, she just meekly agrees and maybe thinks about how "Mr Grey never did anything like THAT! Summer's brother is so sexy..."
Keara - Gift - "Yes, this is the custom of my people! Before the mating ritual, you must defile my mouth with your disgusting, putrid urine! Piss down my throat, morty!" "What the fuck..."
Kitty - Payback - "I said you'd love the premium package! What a big boy you are. Do you need to go number two?" "What the fuck.."
Planetina - "It's good to recycle, morty. You know, once it's been purified, urine is perfectly safe to drink. Just let me know if you need to recycle morty, the planet is dying and we've all got to do our part."
And for the girl that started it all, Tricia - Church Bj, Podium BJ, Do you even lift, More Blackmail, School Favors, Jackin it, Hangover - we already know she's into it, and we can't let jerry's dumb bee-keeping ass take our girl. Plus, points or some shit. Could add a whole piss-branch with tricia, impacting the mentioned scenes. I think text edits and a magic jizz/piss switcheroo are enough to add flavor. Then we could climax with both piss and jizz being spat on jerry.