The explicit tape, which has already started appearing on pay-per-view adult Web sites, features intimate footage of the newlyweds having sex, according to British newspaper The Sun.
Representatives for both Longoria and Parker have yet to comment.
The news breaks as Longoria appears in a new online spoof sex-tape film for Web site FunnyOrDie.com, in which she bounces on a bed in sexy lingerie with a male friend she calls Perry.
Longoria and Perry also stage a pillow fight and the actress asks, 'Alright, are you sure no one's ever gonna see this?'
She pretended the hoax sex tape was recorded before she landed a job on Desperate Housewives, joking, "I have an audition tomorrow for something called Desperate Housewives," to which her partner scoffs, "That sounds like crap!"
COPYRIGHT 2007 WORLD ENTERTAINMENT NEWS NETWORK LTD. All Global Rights Reserved.