Nicollette Goes Topless

6/11/2007 6:31 PM PDT
Sultry Nicollette Sheridan was "Desperately" hot this weekend ... and popped her top to cool off! Hello girls!

Seen here being caressed by raspy-voiced singer/BF Michael Bolton while vacationing on a boat in Italy's Lake Como, the 43-year-old Robertson Blvd. power-shopper found no use for her bathing suit.

Sorry about the stars, folks.