Mario Lopez was kissing women left and right last night ... but they weren't wife and baby mama Courtney Mazza!
The "EXTRA" host was photographed getting hot and heavy with both "Real Housewives of Beverly Hills" star Adrienne Maloof and singer Meital Dohan last night in L.A.
But it was all for a good cause!
The former "Saved by the Bell" star put his lips up for auction as part of a Have a Heart benefit for organ donor recipients.
Meital reportedly dropped $5,000 for her kiss ... but that's nothing compared to Adrienne's bid. The reality star, who is currently dating Sean Stewart, apparently donated $25,000!
Looking at the photo above, it looks like Maloof's kiss was open-mouth. Guess that's what another $20,000 gets you!
And don't worry, Mario's wife signed off on the event -- she was right by his side for the bash!