I don't mind the format itself for these games (even though there are way too many already), but I don't understand why they still haven't figured out that there's nothing fun about streamlined content.
I've only played LSS1 from this thread now but i'm just clicking and clicking, watching the conversation "Flow" with choices of words I'd never actually choose for a conversation. I'm almost sure that my choice doesn't even matter though, it's unlikely they put enough effort to do branching paths since there's no way to rewind/redo individual conversations (can reset the entire game though)
One big issue I have with this format is that girls are willingly sending nudes to a man they don't even see beyond a profile pic. It's not like I want to see dongs, obviously, but it's quite unrealistic that every sexting session would be so one-sided. Or that when the girl is counting you down to cum, she'd be satisfied with a text that says "Ugh, I'm done!".
This kind of game would probably only really take off if it was online-based, free-style texting with either actual AI support to generate (or pick) responses, or just the scripted responses, but giving you the illusion of texting yourself.