Awww! Scott Disick ditched his famous "wave" hairdo and went a bit shorter just days after his son Mason chopped his famous side-sweep and now they look like father-son twins!

The Lord met up with his kids for lunch in Calabasas on Thursday and he and Mason looked absolutely adorable with their summer 'dos ... which look way lower-maintenance than their previous coifs. Poor Mason used to always have his long hair in his eyes and Scott was probably getting tired of the daily gel/hairdryer routine.

Scott was wearing olive cargo pants with Kanye's Yeezy Calabasas sneakers, while Mason had on some grey sweatshorts and a white tee.

It's been a while since we've seen Scott out with the kids -- he's certainly not as close to Kourtney since she's been dating boyfriend Younes Bendjima. Maybe it's the younger dude's abs scaring off the Lord ...