"Sherlock" star Benedict Cumberbatch reportedly has a new girlfriend, and now his sister may be hinting that the lady he is dating may be the right woman for him. Is their relationship getting serious and is Benedict Cumberbatch ready to "settle down" with his new girlfriend?

As we previously reported, Benedict Cumberbatch, who is known for the BBC series "Sherlock," was photographed in Los Angeles, dining with pals after the San Diego Comic-Con. The 38-year-old actor was then joined by a young female and accompanied him for the ride home.

Many have suggested that this blonde lady in a white lace dress is Benedict Cumberbatch's new girlfriend!

According to Cumberbatch's sister, his previous relationships never worked out because his girlfriends couldn't keep up with him. Following his 2012 break up with fashion designer Anna Jones, Cumberbatch's sister, Tracy Peacock-Tabernacle, told the UK's The Sun, "You have to be a pretty smart cookie to keep up with him. I think that is possibly why he has trouble with girlfriends. He is such a lot like Sherlock- he is quick thing like him, but not harsh. He's incredibly well read. In comparison to some he is quite an intellectual," Peacock said.

"One of his regrets is that he hasn't found someone to settle down with," Peacock added. "I they think would have to be someone not in the acting profession. Someone who was happy to hold the fort while he went off and pursued his career," she said.

A source previously confirmed to ShowBizSpy that Benedict's new girlfriend isn't in the entertainment industry.

"He's been seeing the lady in question for the past few months. She isn't in the public eye, and has quite a serious career, so is keen to remain anonymous for as long as possible," the source said.

Sounds like a perfect fit! All clues point to the fact that Benedict has found the girl of his dreams, and they may be getting more serious with each passing day.