Look who's engaged, again.

Bristol Palin and Levi Johnson announced via Us Weekly that not only are they back together, they're engaged.

Twenty-year-old Johnston said in the interview their love re-blossomed three months ago after they met to work out custody plans for their 18-month-old son, Tripp. The couple secretly has been engaged for two weeks.

The family sounds thrilled.

"Bristol at 19 is now a young adult. We obviously want what's best for our children. Bristol believes in redemption and forgiveness to a degree most of us struggle to put in practice in our daily lives," former Alaska governor and vice presidential candidate Sarah Palin and her husband Todd told NBC News.

The couple is living separately until marriage and practicing abstinence, as Bristol is a spokeswoman for an abstinence-only program.

The wedding could take place in the next six weeks. Gawker reports the wedding may become fodder for a reality television show, which would be a cross between "Bethenny Getting Married," "Northern Exposure" and the Republican National Convention.

Contributed by Jesse McLean