In future don't share ANYTHING on-line that you won't be happy to have broadcast to the world...
This time I think you are worrying unnecessarily - you showed a couple of strangers your boobs and you can see more than that on most beaches and in night clubs.
I bet that couple have more pictures of young lasses flashing their bits than you can shake a stick at!
I personally think the sooner a teen learns to drink alcohol responsibly the better. The French allow their children to drink watered wine at quite a young age and as young adults and older adults they are better behaved with drink than the youngsters here in the UK. I learned my alcohol limit under adult supervision at the age of 14 and I have rarely exceeded it in the 45 years since.
That early experience has been beneficial to me. By the time I was a legal drinker at 18 I was able to take alcohol or leave it, enjoy a drink when I fancied one, never have any regrets from being drunk and always got value for money by never having to throw it up...
I stress that drinking alcohol is something that should be learned under adult supervision!