I dont really think that they had sex, I mean they are so flustered about the date and so nerveous that they will kiss at the end. Would be tottaly nonsense if they had sex before that. Guess Ai is just cluesless and simply dont see their romance, so she asks herself what has happen in the bed...
I am still a bit confused, I mean he nutted already in his pants because of her and she got slippery. And then there is no progress after that at all? Is he THAT confused? (yes is dramaturgicly ok.. but still)
no, he started to call her "Mom" but then changed that, becasue thats how he called her as they first met, also its the name we, the reaser are used to from him
At first I was shocked. Such run of time never feels well for me.. I'm happy to see all these moments. Finally a Manga with a real happy end and that SHOWS what happens after. But I was not ready for THAT, I guess. I mean a skip of 30 years? I was already shocked as they simply skiped their 3rd...