HOT SAND. HOT CLUBS. HOT GUYS. What more could two girls want? Try the same guy. SPRING BREAK. SOUTH BEACH. 'NUFF SAID. On a trip to a place where anything can happen -- and does -- two ex-best friends discover that a chance encounter can lead to the chance of a lifetime. HOLLY: Dream date or bad fate? She wants true love--and a break from her strict parents. Perhaps a spring fling will do? ALEXA: Flirting with destiny or flirting with disaster? The guy o