Victoria, 31, uploaded a photo booth picture of her and Tom, which featured two different shots.
The top showed the couple posing with their arms above their heads, each making open-mouthed faces as Victoria stuck her tongue out.
While Victoria was wearing a long-sleeved, black shirt in the top shot, she appeared to have taken her top off in the photo below.
She faced sideways and held up her bare breast as Tom seemingly bit her nipple, which she covered with a black heart emoji.
"Damn baby..." Victoria wrote over the NSFW snap.
The Vanderpump Rules star had a white design painted around his eye - a signature look for performances with his Tom Sandoval & The Most Extras cover band.
TOM'S NEW BOO
Tom began dating the 31-year-old model - who was previously linked to Leonardo DiCaprio - around February of this year.
The new relationship came after Tom broke up his nine-month relationship with Ariana Madix, 38, by having a months-long affair with their co-star Rachel Leviss, 29.
After the two had gone on their first date, Tom gushed about their relationship on Billie Lee's Billie and the Kid podcast.
"My addiction of the week is definitely my friend Victoria that I have been hanging out with," he said.
"She’s definitely super awesome and she’s one of the sweetest people," he added, calling Victoria a "hard worker, humble, really cool, sweet, and thoughtful."
The Schwartz & Sandy's owner also said he had known Victoria for a while before asking her out on a date.
However, Victoria didn't know him from Vanderpump Rules, as he said on last week's Vanderpump Rules After Show that she had never watched the reality series.
He also said that she "doesn't care about social media or following or anything."
SWERVING SPLITSVILLE
Victoria's NSFW upload of her and Tom came after split rumors swirled following last week's Watch What Happens Live episode.
The model was in the audience as Tom joined Andy Cohen in the Bravo Clubhouse alongside VPR alum and current The Valley star Jax Taylor, 44.
However, shortly before the Pump Rules finale aired on Tuesday night, Bravo fans noticed a social media clue that hinted toward a breakup.
Gossip account @BravoBaves on X noticed Tom and Victoria had unfollowed each other on Instagram, which they believed after the WWHL taping.
The account said Jax, Tom, and Victoria went out after filming and the two were no longer following each other in the morning.
They noticed that Billie had also unfollowed both him and Victoria.
In an update posted shortly after, it was revealed the two had re-followed each other, while Billie still had them on her unfollow list.
The episode was aired after VPR on Tuesday night, where Victoria was shown in the crowd supporting her boyfriend after the explosive finale.
The Season 11 finale showed Tom attempting to have a private conversation with Ariana for the first time this season.
She refused, however, believing Tom was just trying to improve his "image" to viewers.