E!
The promo then switches to another scene, and this time Kourtney is on the couch with Scott as he tells her: "I want you and Sofia to be comfortable," adding that "It does like take a toll on me."
Sofia's appearance on KUWTK comes after she appeared on Scott's spinoff show Flip It Like Disick.
While her show appearance proves that Sofia and Scott are becoming more serious, which may mean spending more time with Kourtney too.
Scott and Kourtney met in 2006 at a party thrown by Girls Gone Wild founder Joe Francis in Mexico.
They welcomed three children together, Mason, 9, Penelope, 7, and Reign, 4, before splitting in 2015.
Keeping Up With The Kardashians returns Sunday, October 6 on E!.
