Im on team Saeko on this one she just tried to very casually and subtly try to get some pussy and she just backed out and was okay with waiting, again I just think some people are thinking back to the oneshot and this new slut girl and thinking she's gonna bounce and go for some other more readily agreeable meat.
Miwa herself is getting to know her romanticized version of romance may be very skewed and that it's not at all like the movies when you get to the real deal and she's okay with that but I guess she still wants first times to be special.
And that's another big thing Saeko has had a first very harsh experience and some other fun experiences as she called them, and I'm thinking she tried both clam and sausage so she's more open about wanting sex, Miwa wants Saeko to prepare some roses at the top of a hotel or something at the 3 month anniversary and to carry her there after a dinner at a high class fancy restaurant next to a windowed view or something.