This game has actual content in the NTR path and he’ll only develop the “fake” friendship (NTR) path from now on, so we’ll get more in future updates.
As for how much NTR content we have right now, it’s honestly hard to say. As someone who’s waited for a real NTR path for this game for a long time, it almost feels like I’m a man dying of thirst finding a can of cold coke in the middle of the desert. Like, I feel like we have a lot right now but maybe I’m just happy that we actually have something so I’m being biased.
I would say you should have enough for 3 wanks at the very least.