Our mystery cleavage today belongs to a very well-known adult film starlet who has appeared in 148 titles and directed 46 of her own.

Born as "Tanya Mercado" in Puerto Rico in 1974, this ample babe is half Italian and half Puerto Rican. She was raised in Jackson Township, New Jersey, and got her start in the adult industry in 2001. She currently resides in Reading, PA, where she operates her own production company, and she was named Penthouse Pet in April 2012.

Any guesses?