Jessica Jaymes was discovered unconscious by her friend at her home on in San Fernando Valley, California, TMZ have reported.
The publication stated emergency services got a call for a cardiac arrest and pronounced her dead at the scene.
The cause of dead is currently unknown.
Jessica’s adult film career started in 2002 and in 2004, she became Hustler Video’s first contract model and the Hustler Honey of the Year.
The beauty had appeared in more than 200 adult films.
Before going into the industry, Jessica taught fourth, fifth and sixth grades in schools.
Jessica’s lasted post on Instagram came six days ago were she shared a semi-naked picture with her 902,000 followers.
The star covered her breasts with her arm as she struck a pout to the camera.
Jessica revealed she had recently taken some time off for a little holiday.
She wrote: “Hey guys took a little vacation for a couple of days I love you all.
“Apologies and I hope everyone is having the best sex time of their life!”
Many of followers have now inundated her post with messages of condolences.
One person wrote: “Rest in Peace, Jessica… You will always be remembered.”
Another said: “So sad she’s gone way to soon R.I.P. Beautiful soul.”
A this wrote: “RIP Jessica, 43, gone to soon miss you my friend I will always remember the good days love you always.”