Kaley Cuoco And ‘Big Bang Theory’ Costar Johnny Galecki Get Extremely Physical In Intimate Instagram Photo

After Kaley Cuoco split from her husband of 21 months, Ryan Sweeting, some fans of The Big Bang Theory were hopeful that Penny and Leonard would become a real-life couple. Kaley has insisted that there’s nothing going on between her and Big Bang Theory costar Johnny Galecki, but the two do look pretty flirty in a photo that Johnny recently posted on Instagram.

The photo in question shows Johnny biting Kaley Cuoco’s neck, and he has a pretty big chunk of her skin in his mouth. It looks like he possibly gave Kaley a hickey, but Johnny insisted that the love bite wasn’t meant to be romantic — he was just joking around with his onscreen love interest, and he used a hashtag to let his Instagram followers know that he and Kaley are just BFFs.

“Hilarious night out in the LA arts district w/ @normancook #BFFsbite,” The Big Bang Theory star captioned the photo below, which was taken on Saturday.

Kaley Cuoco has fake-kissed Johnny multiple times on The Big Bang Theory, so perhaps Lenny fans shouldn’t read into the biting photo too much — it shouldn’t be all that surprising that Kaley is comfortable with Johnny putting his mouth on her. However, would Johnny be biting Kaley’s neck like that if she was still with Ryan Sweeting?

According to Us Weekly, The Big Bang Theory costars were hanging out together because they both attended the Fallout 4 Launch party in Los Angeles. Kaley shared a photo from the event on her own Instagram page that shows her sister, Briana Cuoco, hanging out with them at the party.

Kaley Cuoco revealed that she had fun after she finally decided to get out of the house. Judging from one of her pre-party Instagram posts, it’s been a while since she’s left home to do something fun. As Us Weekly reports, Kaley deleted all of her ex’s photos from her Instagram page after she decided to divorce him late in September. This made it seem like their split wasn’t an amicable one, so perhaps she needed a little alone time to recover.

https://instagram.com/p/9uqH9LOWdT/?taken-by=normancook

Some fans of The Big Bang Theory are probably praying that there’s a chance that Kaley Cuoco will rebound from her failed romance by dating Johnny Galecki — if they want Lenny to last on the TV series, why wouldn’t they want Kahnney (this celebrate couple name works because it’s a Star Trek reference) to be an item in real life? If Kaley did start dating Johnny, it would be a case of life imitating art — Penny and Leonard’s relationship didn’t work out the first time around, and neither did Kaley and Johnny’s.

During a 2013 interview with CBS Watch! magazine, Kaley Cuoco revealed that she and Johnny Galecki secretly dated for almost two years. To keep their relationship under wraps, they made sure that they were never seen out in public together. Unfortunately, it eventually became too difficult to put so much effort into hiding their romance, and all that secrecy took a toll on their relationship.

“It was a wonderful relationship but we never spoke a word about it and never went anywhere together. We were so protective of ourselves and the show and didn’t want anything to ruin that. But that also made it sad, too. That’s not the kind of relationship I want — I don’t want to be hiding. We couldn’t do anything. It wasn’t as fun as we wanted it to be.”

Kaley Cuoco and Johnny Galecki certainly seem to be having fun together now, but Kaley insists that they’re just friends. After she announced that she and Ryan Sweeting were getting a divorce, Kaley was plagued by rumors that she was splitting up with the tennis player because she still had feelings for her costar. Kaley responded the rumors on Instagram.

“So sorry to disappoint, but no home wreckers or secret flings going on here,” she wrote. “Me and @sanctionedjohnnygalecki are just the best of buds- Leonard and Penny will just have to suffice!!!”

E! News talked to someone who attended the Fallout 4 party where the neck biting picture was taken, and the anonymous source didn’t witness any PDA between Kaley Cuoco and Johnny Galecki. The Big Bang Theory costars were there with a group of friends, and everyone was having a blast as they drank and danced the night away.

Do you think there’s a chance that Kaley Cuoco and Johnny Galecki will eventually rekindle their romance, or are they better off as friends?

[Photo by Christopher Polk/Getty Images for The People’s Choice Awards]