Pics Emerge Of Django Actress Daniele Watts Making Out with Bf

An eyewitness who saw Daniele and Brian as he worked in a nearby office tells TMZ ... Brian was sitting in the passenger seat with his feet on the curb and Daniele was straddling him with her shirt pulled up -- breasts exposed.  The eyewitness says she was grinding on top of him, rocking back and
forth.

Someone from the office went down and asked Daniele and Brian to stop because everyone in the office could see them but they continued. The eyewitnesses say Brian then began "horizontally bongoing her boobs back and forth." He says she eventually reached into the center console, grabbed a tissue, wiped him down and then herself and tossed it on the grass.