Kate Beckinsale is a talented actress, but she's also proving to be a hilarious Instagram star. The timeless beauty took to social media on Monday to share a photo of herself dressed in a — wait for it — gigantic inflatable penis costume. "Just a girl trying to make it in a man's world . . ." she wrote alongside the LOL-worthy snap. And this definitely isn't the first time she's shown off her cheeky personality with her fans. In May, she hilariously re-created her daughter Lily's birthing photo in honour of her 16th birthday. See her latest snap above, then check out her sweet red carpet date with her ex Michael Sheen and his girlfriend, Sarah Silverman.