I actually kind of liked the song. Tongue-piercing girl wasn't terribly pleasant to listen to, but otherwise it was pretty fine. Honestly not very idol-y at all. If the video wasn't labelled as "アイドル" I would just consider it a normal pop song, done by a group of three girls... which would have probably made the premise less "homg they're naked idols!
" and more "hey that does actually look kind-of fun
The total lack of nipples looks to be done post-production (ie, not body paint), but even then, if you guys are saying that there's little to look at there... your standards are too high.
I find myself enjoying this song (ignore the MV if you can. It's certainly not my cup of tea).