Chiara Ferragni and singer Fedez were seen on holidays in Formentera, 08/05/2018. Chiara Ferragni is a blogger from Milan. Her blog, The Blonde Salad, has about 300k visitors per month. She has almost 14m followers on Instagram.
Instagram: https://www.instagram.com/chiaraferragni/
That hose is actually hooked onto his penis and the fluid squirting out is urine, hence his expression of relief in the first photo.
Actually, it is douche water.