The Riverdale star, 23, who plays Archie Andrews in the hit show, shared a grainy snap of him and Clara, 27, reclining on a sofa with her bump on show.
Clara shared clearer snaps of her growing bump on her own Instagram page, standing in front of a floor-to-ceiling window as well as cuddling with her dog on a couch.
It comes after KJ recently revealed that he would be willing to turn his back on his acting career in order to start a family.
He told Men’s Health Australia: ‘I’ve never been so sure of anything in my life, other than the fact that I want to be a father.
‘It’s a lonely place, this industry. Human interactions are no longer the same for me. I’m searching. I’m searching for genuine relationships with people who genuinely care about me and who I care about, not because of who I am or who they are.’
He added: ‘I don’t want to be lonely for the rest of my life. I’m looking around me at people doing what I’m doing, putting everything into their careers and into fame and into themselves.
‘I’m guilty of the same thing but I look around and I’m like, “Wait, what’s the point of all this if you can’t share it with anyone other than yourself and your friends?” It becomes meaningless.
‘I’d be willing to drop acting and all of this if I had a beautiful family. If I had to do it, I would do it.’
KJ and Clara, a French model, have been dating since last year and attended the Vanity Fair Oscar party together in February 2020.
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