Don't confuse "double clutch"-ing with having 2 males sire offspring in the same clutch.

Double-clutching is the slang term for what is most commonly known in corn snakes, where females lay back to back clutches in one season.

I think what you are asking is if you breed 2 males to the same female, can both males have offspring in the clutch. The answer is YES, and it has been done many times. There's been a few posts on here with breeders who have experienced this.