Way to show you know nothing about writing.
Not agreeing with you isn't the same as not understanding something, chief. The pacing, the speed at which the story is told, is rushed. There are half-a-dozen major LI's and just as many minor LI's, and they're all progressing at breakneck speed, because it's only been five fuckin' days, and look how much has happened. The "narrative arc" here more resembles an orbital shuttles trajectory.
Also he clearly practiced seductive techniques on the prostitutes he hired, as illustrated by the line:
"It is a soft, warm kiss. One like you never felt before. You always loved kissing, but when you had done it with your prostitutes or drunken sluts, it had been more of an oral penetration than a kiss for you. Like a way to dominate those women with your mouth, tongue and saliva." among others.
I love how the example you choose to quote doesn't include him learning seduction
at all. It in fact explicitly says he's never had a kiss like it, and mentions how all his kisses with prostitutes weren't really kisses; that what he learned with his prostitutes and drunken sluts did not prepare him for the seduction experience. Bravo, chief, great example arguing against your own point.
You're just choosing to ignore all of the exposition that takes place between them.
Again, I'm not ignoring it, I'm saying that there's not enough happening between the MC and Alyvia in those five days to justify such an extreme change in attitude; it takes rather more than two conversations to change "stop looking at me with your creepy pervert eyes" into "you're the only one who could ever love me, so I'm totally fine with you fondling my tits". Hence why I think it's been rushed; the characters opinions have changed too drastically, too quickly. I've said this several times, and yet you seem unable to grasp it, and also somehow think that I'm both arguing that it's too rushed, and that I'm being impatient. Not sure how you came to such a conclusion.
Besides the obvious Stephi--Melena, Julia, Mya, and Lola all react positively to his change in character
Julia is desperate for attention from anyone, Mya responds to the fact that he drugged her (same way Melena responds to Leo, unless you think he's got a lot of game, too), and Melena and Lola react to the rumour that he's suddenly got a cock larger than his forearm. Not great examples of his supposed charisma. And to be clear, I'm not saying his efforts to manipulate characters don't work; I'm saying they work because the dev says they do, not because they're actual examples of charismatic behaviour, and that he
certainly wasn't presented as a charismatic person before his time jump (the whole "never managed to have a relationship" thing), which makes him suddenly developing such a skill kind of out-of-left-field.
Let's try a little experiment regarding charisma. I'll assume you're a perfectly average person, in terms of personal charm. Have you ever succesfully charmed someone into a relationship/your bed? If you answered "yes", then congratulations, you've displayed more charm and success with women than we're told the MC ever did.
Again, I get that you want some sexytime with his mom already,
Again, I never said that. Not once. In point of fact, if you look at my discussion with Cherubim, I explicitly agreed with him that taking time with the mother is better than creating scenes quickly; he equated her to a "Grand Prize". You're operating under a faulty premise, chief. Now, since you're objectively and demonstrably wrong in your premise, this is the part where you acknowledge your error.
I merely pointed out that the argument "it's only been a few in-game days, so mother-son content is unlikely" doesn't hold water considering the exact same logic applies to "brother-sister" content. I never said I wanted mother-son content, did I? Do you not understand that you can point out a faulty argument without endorsing the position the argument is being used against?
Let's try walking you through this slowly.
Person A argues for Thing X ("sexytimes with mother"). Person B applies Argument Y ("too unlikely in only a few in-game days"). Person C (that's me) points out that Argument Y would also apply to the sisters and other characters, too, and is therefore not a great argument. Do you think it logically follows that pointing out the flaws of Argument Y equates to agreeing with Person A?