Jennifer Lopez isn't the only one running around town with a hot piece of ass who's half her age ... Marc Anthony's got a hard-bodied 24-year-old of his own ... and last night, he trotted her out in a SKIN-TIGHT sausage-casing of a dress.
43-year-old Anthony has been dating Venezuelan model Shannon De Lima for several months ... and last night, the two strolled in to a private party together in Miami Beach.
With J.Lo still playing chaperone to her ripped boy-toy Casper Smart ... we gotta ask ...
Don't Forget About MY
Hot Young Rebound
4/25/2012 7:13 AM PDT BY TMZ STAFF
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