Well fuck it, I'm gonna reinstall and go on a non-cuck playthrough, just because I want to see where the stories go
Guess I was just pissed because I didn't save often enough
So... without any spoilers.
Sasha - Try to get as high LP as possible the first couple days... go to the bar on the weekend around 20 or 21. If you choose higher strength or guitar options it will be easier from now on.
Next week you should slowly build that LP counter, help her move and do the guitar event (guitar skill needed at this point, from the book or from the starting selection only if you wanna do Band events and the 2 punk/rock/metal girls and their harem...)
get to 51 lp after that, before 21 days pass. You can still evade the event by just not staying home when she is as you keep messaging Sasha or interacting with her outside the house until your LP with her is 51+. From then on, just don't go below and refuse any propositions.
Alexis - After second or third promotion, you'll receive a call... I believe you can postpone by hanging up, but not sure... anyway, her date doesn't trigger until you get 20 lp with her. You'll need high energy and charm/fitness to have the "Back off"/argue option... Afterwards, tell her off during a phone call... and refuse a second time... that's it.
Lexi - After she becomes "yours"... be careful, raise your strength, possibly learn martial arts. And... of course, don't pimp her.
Palla - Don't make her do questionable jobs at the end of her storyline.
Aletta - No idea.
Sam - This one's tricky... there's like 5 different routes. My suggestion is to either prevent her wedding or to let her discover it herself then get revenge.
That should be it... and should cover every type of ntr, from softest that shouldn't apply, to actual that is one of Alexis' routes.