updated 08/08/2013 AT 11:00 AM ET
•originally published 08/08/2013 AT 1:30 PM ET
Looks like things are getting serious.
Just one day after Ashlee Simpson bonded with new beau Evan Ross’s clan – after mom Diana Ross’s performance at the Hollywood Bowl – the new couple was spotted spending quality time with the other man in Simpson’s life: Bronx Mowgli, her 4½-year-old son with ex-husband, Pete Wentz.
The trio was snapped holding hands in Venice Beach, Calif., on Sunday while sporting black rock ‘n roll T-shirts. (From the looks of it, both mom and son paid homage to Michael Jackson, while Ross gave a nod to the Ramones.)
Bronx held on tight to both Ross and Simpson, who cracked a sweet smile while teetering on the sidewalk in stilettos.
Rumors Simpson and Ross were dating started circulating early last month when they were spotted together at various Los Angeles hotspots. They confirmed the coupling on July 31 when they publicly canoodled at a party celebrating the Fall 2013 Jessica Simpson Collection campaign in New York City.