Sean 'Diddy' Combs was spotted out for the first time since his babys mother Kim Porter passed away - he was with his longtime girlfriend Cassie. 

MTO News confirmed yesterday that the Diddy and Cassie have reconciled, and that Cassie has committed to helping Diddy raise his 10 year old daughters.

Paparazzi snapped pics of Diddy when he was out with Cassie after the sudden passing of Kim Porter. 

The music mogul appeared to be completely shaken as he is seen arriving at a specialized movement rehabilitation center this afternoon in Los Angeles with Cassie by his side for support. 

Kim passed away in her home on Thursday. The couple have three children together. 

Diddy_Cassie5
Diddy_Cassie
BGUS_1408107_001
BGUS_1408107_007
DiddyCry

Diddy is absolutely devastated by the news of Kim's passing, but he's holding himself together for his kids. Our snitch added, "Diddy is all about his children now. That's his main focus. And Cassie is his ride-or-die, so she's there for him."

We're told that Cassie has committed to helping her longtime love raise his two youngest daughters.

According to reports, sources close to Diddy say he never stopped interacting with Kim, despite breaking up way back in 2007. We're told their connection went beyond the fact they were co-parenting 3 kids ... they genuinely had love and affection for each other.