It hasn't gone unnoticed by rugby experts outside Gloucester either. Both Burns and Twelvetrees have been capped for the first time by England this season.
And Burns readily acknowledges that the pair have been good for each other in the Cherry and White of Gloucester.
"It's been brilliant lining up alongside Billy, because we've gained a huge understanding there this season as we have become accustomed to each other's styles.
"I've said it before, but Billy has really helped me kick on, and I can't praise him enough for how he's settled in and really taken to life at Gloucester."
However, recent weeks have seen the return of exciting prospect Ryan Mills after a lengthy injury absence.
The 20 year old is more frequently seen at centre, but has done a sterling job in recent weeks for Gloucester, in the absence of Burns and Twelvetrees, by donning the number 10 shirt with some aplomb.
Mills' development is an exciting prospect for Gloucester insists Burns.
"Ryan's really pushing Billy and the rest of the boys for that 12 shirt. He is a quality player, top class, and he's shown what he can do at ten, even though that's not his natural position and one he doesn't enjoy playing as much.
"He enjoys playing 12 more, that's his natural position and the one that he knows best. But just look at what he can do at ten: he has really stepped up and handled things fantastically in the last month or so.
"He's one of those guys who has time on the ball and is able to pick out exactly the right call and either break himself or bring other players into the game and get them across the gain line.
"Playing alongside him with him at 12: that would be great. I can't wait for that to happen, it's clearly going to at some point soon, and it would be seriously exciting.
"I know Nigel is a big fan of his talents, and it will be great to see how he develops over the next few years - because it's going to be a pretty rapid progression for him I reckon.
"He's similar to Billy in that he loves the attacking side of the game, he loves the physical stuff, he can hit the line hard or he can help others make breaks.
"I think there could be some great attacking rugby in the offing with him in the side.
"When you look at the backline options that Gloucester have got, I firmly believe they are right up there with the best around.
"As everyone gains experience and becomes more comfortably operating in the small units, we're only going to get better and better."