Porn Star Jill Kelly -- General Petraeus Sex Scandal Got Me a Job Offer!

Retired porn star Jill Kelly should thank her lucky stars General Petraeus couldn't keep it in his pants ... because his sex scandal scored Kelly a major job offer from porn giant Vivid Entertainment!!!

TMZ obtained a letter from Vivid head honcho Steven Hirsch addressed to Kelly -- the former star of "WMB: Weapons of Masturbation" ... not Jill Kelley, the whistle blower in General Petraeus' sex scandal.

In the letter Hirsch offers Kelly a sweet deal (thanks to her name's recent exposure) ... to host a military-themed porn marathon which will air next January on VividTV -- and will feature 10 pornos from the Vivid vault.

Hirsch really, really wants Kelly on board, adding ... "I know that you support our troops and so do we -- and what better way to show that support than to join us as a VividTV Host!"

Hirsch also extended the same co-hosting offer to the OTHER Jill Kelley ... hoping to snag her "smoking hot looks" and possibly some Kelly on Kelley action.