http://www.bs-i.co.jp/anime/goshujinsama/
Here's a brief synopsis. It's about a 14 year old guy named Yoshitaka Nakabayashi who lives alone in a big mansion since his parents died. Then two girls Mitsuki and Izumi Sawatari (who are 13 and 14 years old respectively) are looking for job and found a help wanted ad wanting for housekeepers for that mansion Yoshitaka is living. The girls later finds out that he's living alone so they decided to work for him. Now the thing is that Yoshitaka is practically a shameless pervert who isn't afraid to force the girls to wear rather provocative clothing (like the maid uniforms he designed for them to wear). He also requires the girls to call him "Master".
Just to note, that girl with the longer, brown hair comes to join the girls later on. The reason for that is rather...... interesting.
