Rainbow Dash can’t wait for her first date with Applejack; they always have an awesome time hanging out, and a relationship just means there are even more physical activities they can try together. So when the dumb zap apple harvest postpones their date, she decides it’s the zap apples that are going to have to change their plans. Equestria should know by now that wild, ancient magic is no match for Rainbow Dash, especially when she might get laid.
Everything is going according to plan, until she crashes. Or, rather, until she wakes up after crashing and fifteen years have gone by. Fifteen years during which she seems to have been a very busy pony.
Now Rainbow Dash has to adjust to a life she never thought she wanted, and figure out if she’ll ever get to live the life that brought her here.