The former Keeping Up With the Kardashians star ignited the chatter when he posted a video of Skyy in his kitchen.
The reality starlet then followed up with an Instagram Story post of her own, showing her cooking for Rob at his home:
Further intensifying the social media speculation that the two were an item, Rob then posted a photo of Alexis to his Snapchat Story on Monday night with the caption, "My WCW [Woman Crush Wednesday]... I've been wanting you for so long."
In response to the social media commentary regarding their apparent romantic relationship, Rob posted a couple of tweets highlighting that the two have known each other for quite some time.
He further added that he was "just trying to eat some good food," but failed to deny if the two were romantically involved.
Many found the timing of their public relationship to be interesting seeing as Alexis had just gotten into a public spat with Rob's ex, Blac Chyna, at a private event.
Footage of the altercation also leaked online.
Currently, Rob and Chyna are still locked in a nasty child support war over their daughter, Dream.