If you're looking for anime similar to Astarotte's Toy EX, you might like these titles.
Haruo is a short geeky schoolboy with a whiny voice and glasses, and the only one in his family without magic powers. Therefore it should come as no surprise that his life is a constant struggle to prevent being ravished by any nearby female. When a witch under a curse named Mamiya enters the fray, Haruo's precious maidenhood that he holds onto so dearly is placed in grave danger. With the added risqué brought on by the arrival of this new number one contender, Haruo's struggle becomes even more desperate, and his hidden powers begin to awaken.
Suekichi goes to university and has, as any Japanese university student, time for hobbies. Things change when he attends his great grandfather's funeral and wakes the next morning in his room with a very sexy girl besides him. His great grandfather has left him a *little* inheritance but there are some conditions. Meanwhile, sexy Aya keeps hanging around and refuses to go away. The beginning of a strange relationship which revolves around suspicions and desire.
Rin and her classmates are beginning the fourth grade. While Aoki and Seiji remain suspicious of each other's intentions regarding the young girl, Rin unexpectedly becoming the class representative continues to confuse Aoki in his attempt at understanding the precocious child.
Hiroshi Karigari is a mad scientist, is in love with the beautiful tennis star Marie, and is incredibly lonely. So lonely, in fact, that he decides to create his own robotic version of Marie to enjoy for his own! Though she is content, at first, with assuming the role of Hiroshi’s “brother”, Marie soon finds that she wants him as more than a friend… but difficulties await! From childhood rivals to the affections of the human Marie, plenty of obstacles lie in the path of romance. Will machine or human love win the affections of the bumbling Hiroshi? Only time will tell…
When high school student Haruka Shinozaki confesses his feelings to the beautiful and aloof class representative, Akiho Kosaka, the last thing he expected was for her to say "yes." Like everything else in her diligent life, Kosaka takes dating quite seriously. In an effort to be a good girlfriend, Kosaka decides to meticulously study (and bluntly suggest) all manner of ways to keep Shinozaki sexually satisfied… in the theoretical sense, that is. This innocently lewd relationship is only just beginning!