Karlie Redd has proven she’s cool with showing off her assets, but now she’s got an offer to go pro … by starring in a XXX production.

We’ve seen the letter Vivid Entertainment sent to the Love & Hip Hop: Atlanta star … offering her a chance to shoot two sex scenes.

If she accepts, Karlie’s guaranteed $25k, but the real money comes on the back-end. We’re told she has the possibility of making over six figures, because as the folks at Vivid know (Kim K, Courtney Stodden, Mimi & Nikko, Farrah Abraham) celeb sex tapes tend to be profitable.