Is a "Fifty Shades of Grey" actor dating Charlize Theron? Luke Grimes, who will play Elliot, Christian Grey's brother in the "Fifty Shades of Grey" movie, was spotted flirting with Charlize Theron at a house party in Santa Monica, California. Does this mean a relationship is blossoming between the two?

Fashion & Style reports that Luke Grimes from the "Fifty Shades of Grey" movie has been said to have his eyes set on the "Monster" actress for quite some time, according to Star magazine.

The pair was recently spotted at a party getting "cozy," and the 38-year-old blonde bombshell exchanged numbers with the 29-year-old actor, Contactmusic.com reports.

According to IB Times, Charlize Theron and Luke Grimes have been "sending flirty text messages to each other" since then.

At the party, "she had her hand on his knee at one point. Charlize then led him onto the dance floor and he put his hands around her waist," a source said.

Gossip Cop, however, has reported that the news is false.

Earlier in the week, OK! Magazine also linked Theron to Keanu Reeves, reporting that the two have been hooking up on and off for years, Fashion & Style reports.

In 2010, Theron called off her engagement to Irish actor Stuart Townsend, after nine years together. She is now mother to adopted son Jackson, Fashion & Style reports.

Grimes will join Dakota Johnson as Anastasia Steele and Jamie Dornan as Christian Grey. Sam Taylor-Johnson is directing the "Fifty Shades of Grey" movie adaptation from a screenplay by Kelly Marcel. The film is expected to premiere in February, 2015.