And why not? They're young and in love!
The cutie couple were spotted checking out their boat for a family fishing trip in St. Petersburg, Florida.
Selenita, who is currently in town filming her new movie Spring Breakers, invited her co-stars Ashley Benson and her boyfriend Ryan Good to join in on the fun.
Oooh, double dating already? Such an adult thing to do!
Speaking of, ahem, adult things, The Biebs and his lady didn't shy away from packing on the PDA during the entire trip.
Oh, you two! They definitely have no problem kissing in public!
[Image via FameFlynetPictures.]