Michael Masters, a curious and horny stepson, finds himself in a compromising position when his voluptuous stepmother, Alison Tyler, walks in on him pleasuring himself. Her massive, natural tits and curvy figure distract him, causing him to freeze mid-stroke. Alison, initially shocked, can't help but notice her stepson's considerable length and girth. She scolds him, but her voice betrays a hint of desire. Michael, emboldened, asks if she'd like to help him finish. Alison hesitates, then agrees, giving in to her taboo urges.