It's a natural mix of the neighborhood stepmoms, older stepdads, barely legal stepsisters, and even the college going stepbrother
falling into some serious family fun. In this age of the extended family, nothing is taboo behind closed doors.
Heck! These step-family relations can lead to some awkward, and not to mention promiscuous good times. No such thing as "normal" these days. You know what they say, Family Strokes for all the folks.