What do you mean exactly by 'atrylplus thing'? The more, uhm... Adult version of this picture is not there, try derpibooru and use tags (artist names characters). As far ax I know the mentioned picture is in the all-time top-scoring.
Somehow, every time I listen to the Song Norwegian Cowbell form Paul Gilbert (www.youtube.com/watch?v=VnmIXB… I imagine this Sweetie Belle's design wearing a leotard and performing a gymnastic dance. Just a weird idea