Adrienne Maloof has no problem landing men -- but last night in  Los Angeles, she paid $25,000 for a makeout session with Mario  Lopez ... and it was all for a good cause.

Maloof and  Lopez were part of the Have a Heart Auction in Honor of Zeke  (HelpZeke.com) ... an event to raise money  for Zeke Kendall, a 20-year-old man who underwent heart transplant surgery last  month.

The auction was held at Mixology at The Grove.

 

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