Small spoiler alert as I wish to warn about the level of lewdness the 3 episodes have as it rated 13 or over for whatever reason (if it was 17 or mild nudity I wouldn't do this warning review btw)... So if you are worried about lewd stuff to continue reading (if not skip the ova, but second-half of episode 2 is worth story-wise), if you would love to see the girls as nude as possible, then just go ahead and watch the 3 episodes.
1st of all, see all episodes of season 2 so episode 2 makes sens
Episode 1: Is sexual abuse in many ways. Public spanking with butt + underwear full view in front of many random guys. Kissing a monkey. Boobies or butt full view (just one step away from being mild nudity) every few seconds (How in the world is this 13 or over?).
Episode 2: Bath, you see butts and everything except girly bits (again, I don't get how this is 13 or over....), mix bath as well. The second part is well worth as a continuation, sort of, from the last few episodes (but not last 2) from season 2.
Episode 3: Start with Christmas cleaning and ends up with Erza's butt full view as she walks away fully naked (is it 13 or over because she still wears a hat?). This episode is beyond words, you don't realise this because it is only for a few seconds they show what they were ordered to do but it doesn't change that the girls are forced to go around in public half-naked, 1 being in underwear, another trying her best to cover herself with her top as she is bottomless and so on....