Well it's Japanese, there is probably two thirds of an episode of hentai which focuses on the characters and their relationships and how over time they grow and understand each other better....and then the tentacle monsters attack.
words worth had a good story....sorta....hentai is pretty lame actually, me and my fiance just crack up at it lol. especially english dubbed ones!!!! so funny!
Few of my favorites (which probably probably don't appeal to many) and are probably not that recent either
Aneimo (based on a VN, I think) Sora no Iro, Mizu no Iro (based on a VN) Wa wana ~ Hakudaku Mamireno Houkago Yume Kui - Tsurumiku Shiki Game Seisaku Ryoujoku Famiresu Choukyou Menu (based on a VN or at least a game)
Wizard Girl Ambitious
Oni ChiChi
Floating Material
Triangle Blue
Shoukoujo The Animation
TSF Monogatari
Kanojo Kanojo Kanojo
Aneimo (based on a VN, I think)
Sora no Iro, Mizu no Iro (based on a VN)
Wa wana ~ Hakudaku Mamireno Houkago
Yume Kui - Tsurumiku Shiki Game Seisaku
Ryoujoku Famiresu Choukyou Menu (based on a VN or at least a game)