Book excerpt: Single dad Aaron Cole is desperate to find a babysitter for his infant son, Joshua. But when he hires Hannah, he gets far more than he bargained for - including her best friends Chloe and Mia. They may be only half his age, but what they lack in experience they're determined to make up for with enthusiasm. Keywords: MF, MFF, FMF, FFM, older man younger woman, summer, nanny, sitter, series, multiple partners, slice of life, free use, bisexual, threesome, foursome, romance, first time, virgin sex