I'm confused at why you still have such a high gravity, especially if a pellicle formed (which means brett was at least fairly active).
What did your recipe/brewday look like?
What yeast(s) did you use in primary/secondary?
If you used a blend, brett will continue to feed on whatever makes up the 1.014.
Since you added priming sugar and a bottling yeast, you'll already have some carbonation, but 3/4 c still gives you some wiggle room for CO2 from brett.
After the bottles are carbonated, I would drink one every other week or so to see how the carbonation is coming along. When they start to become highly carbonated, either have a party and drink them all or stick them in the fridge (or both).
Moral of the story: you probably have enough residual 'food' in your bottles to make a bottle bomb eventually, but since your brett activity seems pretty weak, you've probably got a little while until that happens. Keep checking those bottles, though - you can never turn your back on brett!