Leslie Mann had some fun with photographers while posing for pictures on the red carpet at the London premiere of The Other Woman with co-stars Cameron Diaz and Kate Upton.

The actress grabbed Diaz’s backside as they posted for pictures, with the photographers in front of them having no clue what was going on behind them.

Diaz wore a long-sleeved black leather dress, while Mann opted for a printed dress, E! Online reports.

It seems Diaz wasn’t the only one who Mann had fun with, as Upton revealed that she was grabbing her butt as well.

"I'm surprised you didn't give her a little butt grab because you [Leslie] were pinching Cameron and my butt the whole time," she told Yahoo during a Twitter chat of their other co-star, Nicki Minaj, who plays Diaz’s assistant.

Perhaps Mann didn’t feel as comfortable with Minaj as she did with Diaz and Upton, as she revealed the “Super Bass” rapper” never remembered my name. She just referred to me as ‘lady’."