Photo: Scott Disick/Instagram

Scott Disick and Amelia Hamlin Cuddle Up for Hamptons Boat Outing with His Kids

Scott Disickis enjoying the summer with his daughter and girlfriendAmelia Gray Hamlin.

TheKeeping Up with the Kardashiansstar, 38, posted a photo of himselfcuddling with Hamlin, 20, under an Hermès blanket while enjoying a boat outing with his 9-year-old girlPenelope Scotland.

“Hermès only to swim,” Disick captioned the photo on Saturday. Hamlin responded with heart and fire emojis.

The pair kept it cozy in matching off-white sweats while lounging on a black speedboat emblazoned with “LORD,” Disick’s self-imposed nickname. Penelope got warm with them under the blanket before joining a friend in sightseeing over the edge of the boat, which included some dolphin and seal appearances.

Disick also shares sonsMason Dash, 11½, andReign Aston, 6½, with exKourtney Kardashian, 42, who’s recently been datingTravis Barker, 45. Hamlinposed for a photo with Reign last weekendduring another family outing.

TheFlip It Like Disickstar was first linked to Hamlin in October and theymade their relationship Instagram officialduring Valentine’s Day weekend.

Scott Disick/Instagram

Scott Disick and Penelope

A source later told PEOPLE in March that Disick"is getting serious"with the model. “It’s a different type of maturity, and they really don’t feel the age difference,” the insider added.

Hamlin’s motherLisa Rinnamade her feelings about Disick knownonWatch What Happens Livein May. “[He’s] very similar to what you thought when you met him. He’s more handsome in person,” theReal Housewives of Beverly Hillsstar, 58, told host Andy Cohen. “He was very nice, we had a very nice time. … It is what it is, guys. It is what it is.”

Scott Disick’s daughter Penelope

source: people.com