Teen Mom Maci Bookout isn't letting recent controversy over her underage drinking pics get her down, insisting she's "grown up" a lot since then.
Photos of Maci hitting the beer bong hit the web last week, thanks to the sleuths at TMZ ... who caught up with Bookout last night in NYC.
No hard feelings toward the site, though. Maci cheerfully explained, "I was on vacation, Bentley wasn't with me and I was having a beer."
"It's obviously something I don't do anymore because I've grown up since then." Obviously. She's now a mature 19, not merely 18 ...