PIC: Demi Lovato, Wilmer Valderrama Make Out

 Sam Sharma/PacificCoastNews.com

Rekindling the romance, perhaps? 

Demi Lovato and Wilmer Valderrama were spotted making out in front of the 70's Show star's L.A. home on Tuesday! Lovato, 19, locked lips with the her 31-year-old former fling while he wrapped his arms around her. 

After Lovato checked out of a treatment facility in late January, sources told Us Weekly she reunited with Valderrama on several occasions.

But the former Disney star hasn't been holding on the idea of getting back with Valderrama: she's been romantically linked to Ryan Phillippe, 37, although an insider told Us the duo "were just hooking up" and "it was nothing serious."

Valderrama, who partied with fellow 70s show pals Ashton Kutcher and Danny Masterson Tuesday night in L.A., has also dated his fair share of ladies. He infamously told Howard Stern in 2006 about taking Mandy Moore's virginity, and also told the radio show host Ashlee Simpson was "a screamer." He dated Lindsay Lohan in 2004.

Sign up now for the Us Weekly newsletter to get breaking celebrity news, hot pics and more delivered straight to your inbox!

Want stories like these delivered straight to your phone? Download the Us Weekly iPhone app now!