Hollywood’s on-again, off-again couple — Kate Hudson and Owen Wilson — are on yet again, people.com is reporting.

“They’re back together,” a source tells People magazine of the pair, who spent all of Sunday together at Wilson’s Malibu home. Also there: Hudson’s 5-year-old son Ryder.

Hudson, 29, and Wilson, 40, most recently re-united in Feb. 2008, when they appeared cozy at last year’s Academy Awards.