たぶんＮＧ、瀬川さんの胸は理屈っぱい、
「垂れてきてるんじゃないっすか？シャッス！」なんていうやつは人生をリテイクしたほうがいい。

This is probably no good, but Segawa-san's chest is a decent size, and I got to thinking she might try to recapture their youth like this. "They ain't saggin' yet are they? Maybe this'll help!"
[i]tl note: The artist actually has her thinking "シャッス！" which is an abbreviation of お願いします (I'm in your care), and she's "saying" it to the ribbon.[/i]