Drake Shocked By Massive Bras Onstage During D.C. Concert

Drake asked for bras, and now he has more than he can handle -- and the ones he's getting now are absolutely massive ... to the point that they're starting to concern him.

The rapper was performing in D.C. this weekend, where this ongoing tradition he's started continued -- in which women hurl their undergarments onstage at him ... something he said was lacking recently, only to receive a 36G bra from one notable young woman in NYC.

Welp, the Washington crowd kept the momentum going Sunday ... only this time, a couple ladies one-upped the 21-year-old from last week with even larger cup sizes. Like, way bigger!

As you can see, Drake was utterly flabbergasted by the L- and H-cup bras ... hilariously so.

He went down the alphabet with the audience to see what could possibly come next in terms of size ... and then tried finding the big-boobed woman in the crowd, to no avail it seems.

Then, Drizzy floated a would-be benefit to all the ladies who are packing up top ... free tickets. Something tells us he was joking though, 'cause that could get expensive real quick.

Like we told you, the woman who started this whole trend snagged a Playboy deal out of it -- but it feels like that gravy train might be over now, because there are clearly other women with even more sizeable assets ... and they're apparently trying to get the plug as well.