Hitsuji ni Narasete Itadakimasu!

How can this cutting-edge bedroom robot technology feel this real!!? Amiable-but-broke office worker Mr. Baba finds himself in financial trouble after ordering an expensive adult toy one drunken night. Luckily, his friend hooks him up with a lucrative part-time job as a "test subject" for "comfort" robots! Of course, he likes that kind of stuff, but what will he be doing exactly...? Upon nervously approaching the research facility, Mr. Baba meets a beautiful, bespectacled (male) researcher...

(Source: Renta!)

Note: Includes an extra.