Rosario Rubs Up On It

6/25/2007 1:24 PM PDT BY TMZ STAFF
It got hot and heavy on the dance floor for "Sin City" resident Rosario Dawson and Italian actress/director Asia Argento last week. Mamma Mia!

The two hotties were caught bumpin' and grindin' on the dance floor at Diesel's Live Show party in Florence.

Viva Italia!