These two girls appeared in Gareki 29 (although there the ass and thighs didn't look as massive as they were supposed to). Now what's bugging me is I swear I saw these two images with the measurements before but I have no clue where and the yande.re source is no help. It must have been on his Fanbox during the couple months I subscribed to it is all I can think.
And yeah, when I did the conversion from metric (160 lbs) I went holy shit; usually when the Japanese do character profiles they're around 100 lbs or less even when it seems absurdly light for the body type, don't usually see them go to the other extreme.