Kate Beckinsale Spreads Legs In Tube Top & The Caption Is Very NSFW

Kate Beckinsale/Instagram

Kate Beckinsale is once again upping the ante on Instagram. The "Underworld" actress has been wowing her 3.7 million followers with a pretty steady stream of bikini pics of late, although Kate's photo yesterday managed to continue a tradition (without the swimwear).

The snap featured pal (and frequent Instagram buddy) Jonathan Voluck, with the two posing in a very risque way – Kate, in particular. The 46-year-old was sat on Voluck's lap with her legs spread, rocking a sexy black outfit comprised of black pants paired with the world's tiniest tube top.

Kate Beckinsale/Instagram

Kate went down the adult route with her caption.

"Imagining that my leg is Jonny’s little tiny leg is giving me more joy than it should," the actress wrote.

Kate might have used the word "leg" a fair few times in her caption, but her fans didn't take long to pick up on the NSFW vibes. In fact, it looks like fans have been querying whether Kate's pal is, in fact, more than just a platonic friend.

"Who is that man?" one fan queried.

"One of those philosophical questions we grapple with," Beckinsale replied.

Gettyimages | Dia Dipasupil

Beady-eyed fans will have noticed that Jonathan accompanied Kate in her ab-flaunting bikini snap not too long ago. The photo showed off Kate's insane figure as she soaked up the sun, although this wouldn't be the first social media image showing off the star's silhouette. Kate's age-defying body has even had her dubbed "Benjamin Button" by a fan.

With other images also showing Voluck, fans may well have their reasons for querying if he and Kate are dating. Kate's most recent photo with Voluck sparked just this question.

"Is Johnny your boyfriend?" a fan asked.

"He is not," Kate replied.

Gettyimages | Leon Bennett

A major magazine feature from Kate doesn't come along too often, but December 18 brought just this. Kate fronted Women's Health ahead of the magazine's January/February issue, and the deets are all anyone can talk about.

First off, Kate revealed her pre-workout food. FYI, that's chicken or eggs with grass-fed butter. The Brit then revealed that later in the day, she'll feed herself with salmon or salad – the latter, with radish, sprouts, and safflower oil.

There was a cheat food mention, though. "Potato chips."

Ben Watts/Women's Health

Workouts seem to come easily to Kate. The star's Instagram is certainly living proof of that, with the feed splattered with insane sweat sessions showing Kate's strength and flexibility.

“I’m very connected to my body, so if I’m going to experience stress, I’m probably going to experience it physically,” she says. “So it’s usually a good idea for me to go do something physical to get rid of it. I kind of have to think of myself as a horse or something—time for a run around the paddock," Kate told Women's Health.

Kate's breakout role in the 2001 "Pearl Harbor" movie hasn't been forgotten. Kate even mentioned it in her interview, letting the world know that she'd been told to lose weight.

“It wasn’t great, it didn’t make me feel good, and in general, I think women are body-shamed 100 million percent more than men. But on this particular project, I wasn’t,” she said.

This social media update showed the fit-as-ever Kate, the playful Kate, and it gave Instagram one more reminder of why Kate's social media fanbase exists.