Yes, there is one NTR at the prologue with MC Mom and then multiple NTR scenes with MC's friend's mom. Also Dev will release a 'Dark DLC' later containing an NTR route. So you can try it out as its still a really good game or just wait until the DLC update
Is the anal scene bugged? Seems like the requirement is greyed out and when it does finally open up you don't have enough arousal points left to try it a second time.
No it works well, if you start with 12 arousal points go to anal when u have 5 points and then keep switching to it two more times, you will finish with anal