After overhearing a secret phone conversation between your mom and dad, it becomes apparent that your mom is ovulating RIGHT NOW and needs him to come home to impregnate her.. it SHOULD turn your stomach imagining your mom naked and having sex but it doesn't.. your mom is the only woman you've ever truly wanted.. desired.. and now she's in desperate need of someone to give her what she wants.. and if your dad isn't up to the job then.. well.. it'll HAVE to be you..