AJ McCarron & Katherine Webb's Engagement -- We Don't Wanna Wait To Get Married!

Katherine Webb and AJ McCarron won't be draggin' out their engagement for an entire year -- they're gonna hit the altar after just a COUPLE OF MONTHS ... Katherine tells TMZ Sports.

Webb -- sportin' some super short daisy dukes -- strolled through LAX this weekend with her massive engagement ring ... when she told us why she and the future NFL quarterback will get the show on the road as soon as possible.

AJ popped the question at the end of March -- and according to several reports, they're gunning to get married in early July.

There's word that Katherine and AJ are in talks to document their engagement and wedding for a reality show -- but the deal hasn't been signed yet.