This the adorable moment a 200lb dog welcomed home his new sibling - a tiny kitten.<br /><br />Otto Von Barksmark, an English Mastiff, welcomed the tiny Fritz Carlton, a 16-week-old kitten, at home 10 weeks ago.<br /><br />A video shows Otto shifting nervously and staring at his new sibling with a strange mixture of excitement and fear.<br /><br />Owner Trent Koen, 27, said: "He had no idea what to do with himself.<br /><br />"He didn't even want to make eye contact."<br /><br />Trent, a clerk at a law firm in Dallas, Texas, USA, adopted Fritz from a rescue center.<br /><br />Fritz was chosen specifically for Otto as Trent knew that any new pets had to get along with him.<br /><br />Trent said: "It was actually love at first sight. Fritz is very dog-like for a cat. He'll come over and sit on my lap or go over and cuddle Otto."<br /><br />Otto and Fritz have been under the same roof for 10 weeks now but the pup is still a bit nervous <br /><br />Trent said: "Fritz will try to cuddle with Otto and he'll lie with him for a while and then get up to look at me like: 'Am I OK?'<br /><br />"He's not just scared of Fritz. Late at night, after Otto has climbed into my bed, Fritz will often be there with him."
