Artist name is あおぞら, translated as "Blue Sky". He is also known as NIM-ROD.
From pages 1 to 11 it is「はっしゃオーライ☆ 続編 乱あ」and could be translated as "It started all right" From pages 12 to 15 it is「かすみちゃんのオナ○ーシーン」and could be translated as "Masturbation of Kasumi"
More of the artist's work can be found on his pixiv account at: www.pixiv.net/member.php?id=7947499 Or on his blog at: nimrod0330.blog.fc2.com/page-1.html And on his R-18 blog at: lovenimrod.blog.fc2.com/
I agree with saibott, the gender bending tag should be removed since no gender bending actually occurs here.
I don't see how the harem tag applies either, since the only characters starring in this doujin are Ranma and Akane and last time I checked, harems consist of more than two people.