Hot Couple: Sean Penn and Stacey Koplin

Sean Penn Sean Penn shows off his toned physique as he and girlfriend Stacey Koplin walk along the beach before hopping onto a jet ski on Independence Day.

Sean Penn Sean Penn shows off his toned physique as he and girlfriend Stacey Koplin walk along the beach before hopping onto a jet ski on Independence Day.

Sean Penn Sean Penn shows off his toned physique as he and girlfriend Stacey Koplin walk along the beach before hopping onto a jet ski on Independence Day.

Sean Penn Sean Penn shows off his toned physique as he and girlfriend Stacey Koplin walk along the beach before hopping onto a jet ski on Independence Day.

Sean Penn Sean Penn shows off his toned physique as he and girlfriend Stacey Koplin walk along the beach before hopping onto a jet ski on Independence Day.

Sean Penn Sean Penn shows off his toned physique as he and girlfriend Stacey Koplin walk along the beach before hopping onto a jet ski on Independence Day.

The Sean Penn and Stacy Koplin