When the 2 vibrators were hanging from her crotch that was the most BRUH moment I've seen in yuri, of course I don't like NTR, but not sure if this is the same considering they were both trying to get her, in fact, I'm glad she stayed instead of going home to cry and feel the pain of a broken heart knowing that her love stayed with someone else while she's crying alone, that would have been awwwwfulllll.
What I don't get is the "THIS IS GrOSSS!" while you were sitting there, that sounded like Haruki too much for my liking, a bad imitation of tsundere at that point.
I hope they get together and leave the coach behind of course, I don't want them to have normal sex at this point, but I want to see just the 2 of them.