The 27-year-old added that his wife, Anna, has known about his lewd acts for years.
Now, she's remembering what she thought when he first told her:
[Image via Instagram.]
They're so ready, they even do their own stunts!
Before sitting down with Jimmy Kimmel, the rising stars dropped in - literally - from the roof on zip lines!
Ch-ch-check out the pics (below) to see the dapper Theo and gorgeous Shailene show up in one piece!
[Image via YouTube.]