Reese Witherspoon has reacted furiously to pictures of Jennifer Aniston and Jake Gyllenhaal sharing a kiss at a recent awards ceremony - and warned the 'Friends' star to stay away from her current boyfriend.

Aniston and Gyllenhaal embraced at the Annual GLAAD Media Awards, where the 'Brokeback Mountain' actor was presenting Jennifer with an award. 

"It wasn't just a polite peck on the cheek. There was definitely feeling in that embrace. When Reese heard about it, she broke down in tears asking, 'Why would he do that?' She is very unhappy about it." a source told Woman's Day magazine.

In November Reese filed for divorce from her husband of seven years Ryan Phillippe, with whom she has two children.

She has reportedly said of Jake that he is "everything Ryan wasn't" (good actor included), though that situation may change following these pictures.

The source added: "She always thought Jake was intelligent and charming. That's why she's so stunned by the photographs of Jake and Jen. She's really hurt by what she's seen. They seem to be very explicit and everyone knows Jennifer's looking for love."