Ariana Grande and Pete Davidson are engaged after a few weeks of dating, ET has learned.

“Pete introduced Ariana to his mother at Zuma in New York during one of the SNL after-parties,” the source says.

“Ariana spent the majority of the night hanging out with her [Amy Waters Davidson].

Pete was circulating the room with the cast but Ariana was super comfortable being with [Amy].”

The singer and the Saturday Night Live star , both 24, were first linked late last month , following their respective splits -- Davidson from Cazzie David and Grande from rapper Mac Miller.

Meanwhile, Us Weekly reports that the two were telling people that they’re engaged at Robert Pattinson’s birthday party in Los Angeles on Saturday, June 9.

Davidson took a pic with actor Brian Tyree Henry, then captioned the photo, “I’m having his kids.” Grande responded by commenting, “I look so good here,” on the pic, seemingly suggesting she sees herself as the one to bear Davidson’s future children.