Scott Disick and Sofia Richie's romance is heating up in Mexico this week.

The 34-year-old "Keeping Up with the Kardashians" star and 19-year-old model kissed and cuddled in photos from Punta Mita on Monday amid reports they're officially dating.

E! News reported Disick and Richie are staying at Girls Gone Wild founder Joe Francis' house with Disick's friends David Einhorn and Cooper Mount. The group arrived by private plane over the weekend.

"They spent Sunday laying out by the pool listening to music and being waited on by the butler staff," a source said. "They were outside most of the day, relaxing on pool rafts and hanging out."

"Scott and Sofia seem very happy together and are very affectionate," the insider added. "They always had their arms wrapped around each other and were kissing and hugging."

Disick and Richie shared pictures on Instagram and Instagram Stories of themselves getting close at the beach. The model also posted a snapshot of herself snuggling up to Disick at dinner.

"Taco night," she wrote.

Disick and Richie denied they were dating in May, but re-sparked romance rumors in September following several outings in Los Angeles. The pair have been growing closer since, according to People.

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"Scott likes having her around," a source said of Richie, the daughter of singer Lionel Richie. "She isn't a wild party animal."

"Sofia calls Scott her boyfriend," an insider added. "She thinks he is the best."

Disick shares three children, 7-year-old Mason, 5-year-old daughter Penelope and 2-year-old son Reign with ex-partner Kourtney Kardashian, from whom he split in 2015 after nine years of dating.

Kardashian is now dating Younes Bendjima.