His much younger girlfriend Sofia Richie has been flaunting her bikini body while on a Caribbean vacation with Kylie Jenner.

And for 36-year-old Scott Disick, the growing closeness between Sofia, 20, and Kylie, 21, is all good, according to a report in UsWeekly on Wednesday.

‘Scott is really happy that Sofia and Kylie have become so close again because it means that Sofia has been further accepted in the family,’ a source told the publication.

Going strong: Scott Disick, 36, is reported to be 'really happy' that his girlfriend Sofia Richie, 20, is once again getting close to Kylie Jenner. The two are pictured in February

UsWeekly’s source even claims that the growing closeness between the two has helped make Scott’s relationship with Sofia ‘stronger’.

Kylie, of course, is the younger half-sister of Scott’s former flame Kourtney Kardashian, the mother of his three children.

He hooked up with the daughter of hitmaker Lionel Richie a little over two years ago after his on/off relationship with Kourtney, 40, ended for good.

The two have remained close, however, as they co-parent their kids and Kourtney is said to have given her seal of approval to her ex’s May-December romance.

Sofia joined Kylie and some other of the reality star’s pals for trip to Turks & Caicos and the two have been posting up a storm together on Instagram.

Sofia, it seems, is filling in the gap left by the departure of Kylie’s BFF Jordyn Woods following the Tristan Thompson cheating scandal.

In a preview for the new season of Keeping Up With The Kardashians, Kylie is seen telling her mom Kris and half-sister Khloe that she thinks the drama with Jordyn ‘needed to happen for a reason.’

‘She was my security blanket, she lived with me, we did everything together,’ she explained.

‘I just felt like, ‘Oh, I have Jordyn, I don’t need anything else.’ And I feel like there’s a part of me that needed to grow without her.’

Pals: Sofia, it seems, along with Anastasia Karanikolaou and Yris Palmer, is filling in the gap left by the departure of Kylie's BFF Jordyn Woods following the Tristan Thompson cheating scandal
Source: Daily Mail