SEXCLUSIVE: Michelle the MILF

Looks like Zac Efron has gone cougar hunting.

The 24-year old actor recently swapped spit with Michelle Pfeiffer, 53, in Gary Marshall’s latest ensemble flick New Year’s Eve.

The film also stars Ashton Kutcher, who said the on-screen chemistry between Efron and Pfeiffer led to an affair after shooting wrapped.

“Their relationship makes me nauseous,” Kutcher confessed to OMGG.com. “Why on earth would a young stud like Efron ever fall for an aging, former-sex symbol actress?”