Biebs and his honey Selena Gomez, have been together since 2010 — that's fooooreeeeever for a teen Hollywood couple!
"It's just about being honest with one another. You just have to be honest, that's the first thing, because if you're not honest, then the relationship is just not a good relationship. At the end of the day, your girl would appreciate you being honest more than lying to her and vice versa."
There ya have it! Honestly = longevity!!
Also, the fact they're both super hot and rich can't hurt. LOLZ!
[Image via WENN.]