Oh boy oh boy oh boy! Paris Hilton has reportedly gotten back together with my most favoritest of her douchebag boyfriends, the uberdouchtastic Doug Reinhardt.

"They are definitely happy again," a source close to the couple -- who called it quits in June after four months of dating -- tells Us.

On Monday, Reinhardt, 23, posted on Twitter: "What an amazing weekend with my beautiful girlfriend. I love her so much!" The day before that, he wrote: "Laying in bed watching SportsCenter with my girl." (Source)

Let's hear it for love conquering all. You know what they say, personal differences may come and go, but a sexually transmitted disease can stay with you forever.

At the "Express Celebrates TXT L8TR Campaign" earlier this week: