You can also view a categorical version of this list via the manga fanservice compilation category.
Ago Nashi Gen to Ore Monogatari
Dokki! Onnadarake no Muzintou – First Impact
Fudajo! Otome Shoukan Datsui Taisen
Fudajo! Otome Shoukan Datsui Taisen
Gate – Jietai Kare no Chi nite, Kaku Tatakeri
Haru-nee ga Boku ni xx Suru Riyuu
Himegoto Juukyuusai no Seifuku
History’s Strongest Disciple Kenichi
Hoshihime Mura no Naisho Hanashi
Hyakka Ryouran (Samurai Girls)
Ikebukuro Hatsu, Zensekai Yuki!
Imouto no Tame nara Sekai o Shukusei Shite mo Ii yo ne!
Kanojo no Kagi wo Akeru Houhou
Keep your Hands off my Daughter!
Koi wo Suru no ga Shigoto desu
Koko ga Uwasa no El Palacio (non-nude)
Kono Shima ni wa Midara de Jaaaku na Mono ga Sumu
Magicalize (Inomaru)
Magical Pâtissière Kosaki-chan (Nisekoi spin-off)
Maji de Watashi ni Koi Shinasai!!
Monster Musume no Iru Nichijou
Ochitekita Ryuuou to Horobiyuku Majo no Kuni
Okasu Bekarazu!! Junketsu Tokku!
Ookii Onnanoko wa Daisuki desu ka
Ore ga Ojou-sama Gakkou ni “Shomin Sample” Toshite Rachirareta Ken
Prison School (aka Kangoku Gakuen)
Saijou no Meii – The King of Neet
Sakura Tsuushin (aka Sakura Diaries)
Seitokai Osayagami Sayuri wa Ganbatte Iru!
Shinmai Maou no Keiyakusha (aka Shinmai Maou no Testament)
Shinseiki Evangelion Ikari Shinji Ikusei Keikaku
Sorcerer Hunters (aka Bakuretsu Hunters)
Tejina-senpai (Magical Sempai)
Tennen Kakutou Shoujo Chihiro-chan
To Love-Ru Darkness FULL COLOR
Yarisugi Companion to Atashi Monogatari
Yuusha no Musume to Deba-Bouchou
Zantei Kanojo – Binkan Fighter
Hentai
The following is a list of nude ecchi anime series to be based on non-nude manga / novel / VN / game-book sources (so far, at least):
Air Gear
Asobi ni Iku Yo!
Dakara Boku wa, H ga Dekinai.
Girls Bravo
Gokukoku no Brynhildr
Kanokon
Mardock Scramble
Queen’s Blade
Sekai de Ichiban Tsuyoku Naritai!
Yuushibu
Dansai Bunri no Crime Edge
The following is a list of non-nude ecchi anime series to be based on nude manga / novel / VN / game-book sources:
Btooom!
Cube×Cursed×Curious
Gokujo
Mai-Hime (Mai-Hime manga had nudity, the anime did not. Spinoff anime Mai-Otome Zwei OVAs had brief nudity)
Suzuka
Tenjou Tenge
Papakiki
