Sofia Richie just became the hottest thing on the planet!

The teen was mobbed when she left Il Pastaio restaurant in Beverly Hills on Monday night -- and that's what happens when you date Justin Bieber!

As she left the restaurant, the 17-year-old dodged questions in regards to Selena Gomez's accusations about Bieber's cheating on her when they were together, as well as another hot topic, Bieber's "manscaping" or lack thereof!

For the wild dinner, Sofia opted for a bright red bomber jacket, crop top and a RE/DONE short denim skirt ($243.27). She tried to go incognito with a bandana and glasses -- but we spotted her!

Interestingly enough, Bieber deleted his Instagram account on Monday night after the singer was blasted with comments over his new lady love.

Bieber and his ex Selena embarked on a Twitter war after photos of the "Sorry" singer and Lionel Richie's daughter popped up. Fans took sides and voiced their displeasure with Richie and in the end, Bieber said goodbye to Instagram.