I'm impressed that we didn't get the cliché main character with the biggest dick she has ever seen... Overall a nice little read, only thing bad about this story is that it wasn't shown how they make love nowadays, I would have loved to see that!
At first I was a bit confused about this change of lovers until I realized that she still has a thing for her first shota lover (thats why she had the flashback in the first place) and the second one is only a substitute for him. Makes my hopes grow that Uo plans to make a chapter of how they get back together...
I was actually a bit surprised that his dick was of an average/smaller size.
I have seen such cases before, but about 80% of what I've read in the past would indicate to me that he should have had like, the biggest/one of the bigger dicks she's seen before. Nothing wrong with this, of course. Almost makes the protagonist relatable, if it weren't for the situation he's in.
That ending though...It would have been nice if we could have seen how they go about it 'currently' as compared to the past.