Just days after they stunned fans with their passionate display as they snogged on a night out, Kate Beckinsale and Jack Whitehall have enjoyed a not-so secret reunion.

Or so fans think.

Following her late-night meeting with the comedian, Kate shared a sultry bedroom selfie to Instagram.

Eagle-eyed followers of the Hollywood star’s page noticed a very large bulge in the flowery drapes behind her as she pouted for the camera.

“Are you hiding behind the curtain Jack Whitehall?” one asked in the comments.

Fans noticed a questionable bulge in her curtains that appeared to be hiding something (Image: Instagram)

“Those curtains look perfect to hide behind,” teased another.

“Who is behind the curtain?” quizzed a third fan, to which many speculated in response that it could be funnyman Jack, 30, who Kate, 45 was seen out with over the weekend.

Kate attended the GQ Men of the Year Awards solo in September 2018 (Image: REX/Shutterstock)
Jack poked fun at Paul from S Club 7

The pair were spotted locking lips and ‘acting like loved-up teenagers’ according to onlookers as they partied at a karaoke bar with friends.

The unlikely couple were then spotted checking into a £2,000 a night hotel as they ended their evening in down town Los Angeles.

Kate’s mood appeared to have soured after her loved-up weekend (Image: Getty Images North America)

Speaking out in her latest Instagram the caption, Kate told fans: “Don’t even attempt to f*ck with me.”

She added: “I’ve just correctly diagnosed a family member with a double stye and I’m suddenly getting a lot of texts about chickens.”

Funnyman Jack Whitehall previously dated Gemma Chan (Image: PA Wire)

The Hollywood star’s fiery mood was worlds away from her smitten outing with funnyman Jack over the weekend.

Kate was seen draped over the star, who is 15 years her junior, as she was photographed making eyes at him in a bar.

An onlooker told The Sun: “They were like a pair of loved-up teenagers and weren’t trying to hide their feelings, they were practically sitting on top of each other in the booth of the nightclub and were laughing with each other.

“Kate rested her hand on Jack’s shoulder and she kept laughing and smiling at his jokes, as the night progressed, he seemed to be growing in confidence and put his arm around her and gave her a hug.

“Then he decided to put his hand around the back of Kate’s neck and pulled her across him, where they started to passionately kiss.”