A source tells ET that the pair spent Saturday night together at the Saturday Night Live after party at Le Chalet, a new New York City hot spot inside L'Avenue at Saks, where they didn't hide their relationship. The source says Davidson and Gerber "arrived to the after party together and it was clear in their style choices that they were going for a matching '90s-inspired look."
"Throughout the night, they were very affectionate and flirtatious with one another," the source adds. "At one point in the evening, Pete and Kaia were alone together in the back of the restaurant, in one of the booths. They were laughing with each other and exchanging flirtatious touches."
However, the source adds that they weren't spotted kissing during the night of revelry. The source also says Davidson spent the evening mingling with his SNL co-stars, including Heidi Gardner, Aidy Bryant, Bowen Yang, Mikey Day and Beck Bennett as well.
In November, the 18-year-old supermodel was wearing an eyebrow-raising piece of jewelry while at the Women's Guild Cedars-Sinai Annual Luncheon in Beverly Hills -- a necklace featuring a "P" pendant, which naturally fueled heated speculation.
Since, the two have proudly displayed some PDA for fans, including holding hands while leaving a grocery store in upstate New York together.