Originally Posted by
Ryllharu
Rizelmine is a bit old, and sometimes a little far over the loli threshold, but as I remember it's pretty much uncensored. It's funny, and I really enjoyed it.
Bokusatsu Tenshi Dokuro-chan is very ecchi, short, funny, and very bloody. As for nudity, I don't remember all that much, but it should satisfy anyway.
Nurse Witch Komugi has just about everything you want. It's one of my favorite ecchi OVAs.
He Is My Master doesn't have that much nudity, but there is a lot of ecchi and it's pretty funny.
If you find the dvd versions of Girls Bravo, there is another comedy/romance with lots of exposure. If it's not the dvd version, it will be censored.
Edit: I'm not sure if there's full-on nudity in all of these, over the years I pretty much became immune to fanservice.