Cruz Beckham’s gunning for dad’s 'Golden Balls' title -- flashing his own family jewels to his GF ... who looked absolutely over the moon about it!
You gotta see the pics -- Cruz turned his Amalfi Coast, Italy yacht trip into an R-rated peep show Wednesday ... rocking a teeny blue Speedo, bulge front and center for GF Jackie Apostel, who wasn’t shy about yanking him even closer with a handful of Beckham bum for good measure.
Jackie was literally gazing up at Cruz aboard the Bulge Voyage, inching closer and closer -- basically setting the stage for the racy moment everyone thought was about to go down.