Reese and Jake Back On?

 Image by Splash News

You can run, but you can't hide! Just when we thought Reese Witherspoon and Jake Gyllenhaal were dunzo, they resurface in front of Jake's Hollywood Hills home.

Reese, trying to go incognito with glasses, picked up Jake in her silver Lexus and sped towards her Brentwood home.

Click HERE to see the pic. So are they back on or is it a friends with benefits situation?