Richard Sherman is being courted by an award-winning actress ... the star of "Ass Spelunking" and "Sweet 'Ho Alabama" ... who tells TMZ Sports she desperately wants to shoot a gang bang with Seattle's "Legion of Boom."

Savanna Samson -- who won a 2005 AVN award for "Best Gang Bang" -- is out in NYC ... and told us she's a HUUUGE fan of the Seahawks' defense.

In fact, she's such a big fan ... she wants to nail all of 'em at the same time ... on video.