"The Other Woman" star Cameron Diaz is reportedly not only dating Good Charlotte rocker Benji Madden but also hoping to be pregnant with his baby by the end of 2014, Hollywood Life has learned.

It has already been almost two months that Diaz and Madden are rumored to be dating as they are spotted together several times.

Diaz is said to be taking her relationship with the rocker seriously. However, even before a wedding takes place, she is already considering having a baby with him.

Diaz has recently been the inspiration of a topless selfie posted by pop star Miley Cyrus on Instagram.

While doing her signature move sticking out her tongue, the 21-year-old "Wrecking Ball" hit maker sports a hairstyle channelling Diaz's bangs in the 1998 movie "There's Something About Mary" with her hair spiked up.

While posing in front of a mirror with her hands covering her breasts, Cyrus covered an exposed nipple with a little octopus emoticon.

It was not clear, however, whether the partial nudity was also inspired by Diaz's recent movie with Jason Segel entitled "Sex Tape."

Meanwhile, Diaz's rumored boyfriend Madden and twin brother Joel collaborated with their friend Pharrell Williams for their debut album as the Madden Brothers entitled "Greetings from California," which is due Oct. 7.

Two songs from the album entitled "California Rain" and "Abbey" were co-written by Williams and the twin brothers.

Joel said, "We went to see Pharrell because he's someone we really love and respect. Benji brought an acoustic guitar and Pharrell recognized that we wanted to make classic, California rock & roll and drew comparisons to the Eagles, which inspired us even more. We wrote 'California Rain' together that night."

From 2002 to 2007, the twins have led Good Charlotte to three top 10 Billboard 200 albums. Their new album's lead single entitled "We are Done" is already at top 40, according to Billboard.