Rick Salomon & Pamela Anderson Kissing -- Divorce OFF ... We're Guessing

Pam Anderson clearly had a change of heart after filing for divorce earlier this month.

Pam and hubby Rick Salomon were making out in Malibu Wednesday, showing no sign of ending their 6-month marriage. It's their second try at marriage. They married in 2007 ... it lasted 2 months.

As we reported ... Pam listed the date of separation as July 3 ... 2 days after Rick won $.2.8 million in a poker tournament -- which means it would be community property -- split 50/50 (we're told there's no prenup).