The model/actress shared an adorable Instagram image on Monday of the rumored couple cuddled up in leather seats. We're assuming that Jonas is jokingly wearing either Hadid or Delevingne's white fur coat.
Also on Monday, both Joe and his younger brother Nick Instagrammed a few boat pics. "Boats are cool. Family reunion," the youngest JoBro, 22, wrote.
Hadid and Jonas haven't shied away from the cameras as their relationship blooms.
Just last week, the 25-year-old singer posted a photo of his 20-year-old rumored girlfriend licking his neck. Jonas is wearing a shirt with "Daddy" written in a rope-script font and captioned the pic: "Call me."