Can someone recommend an ecchi manga that I haven't read yet, trying to keep it within Seinen or Shounen,?

I've read; Ane Doki, Ane Komi, Bee-Be-Beat It!, Cherry x Cherry, all of the Code Geass, Dead Soul Revolver, Futari Ecchi, Grenadier, Hidan no Aria, Inumimi, IO, Kampfer, Kanokon, Kimi no Iru Machi, Kimiiro Focus, Kimikiss - Various Heroines, KissxSis, Koibana Onsen, Love Hina, Love Junkies, Love Lucky, Maken-Ki, Marugoto Anju Gakuen, Mission! School, Mouse, Nagasarete Ariantou, Nogizaka Haruka no Himitsu, Open Sesame, Princess Lover, Ranobe no Hen!, Seishun Pop!, Sore ga Kanojo no Seigi nara, To Love-Ru Darkness, To-LOVE-Ru, Trinity Seven: 7-Nin no Mahoutsuki, Umi no Misaki, Velvet Kiss, Virgin na Kankei, Virgin na Kankei R, White Album, Yomerio Choice, Zero in, Rosario Vampire + (Both seasons)... That's all I can think of currently.