Diddy, Cassie and Zac Posen // Special Screening of "The September Issue" in NYC

Cassie and Diddy, pictured above with designer Zac Posen, attended a special screening for “The September Issue” Wednesday (Aug 19) in New York City. Could Cassie and Diddy not make their “relationship” any more obvious?

Other famous faces who hit up the screening were supermodels Jessica White and Chanel Iman, who was pictured sucking face with her boyfriend. Actress Sienna Miller also attended the special NYC screening of the film.

PHOTOS: GETTY IMAGES / WIRE IMAGE