Innocent 18-year-old Portia Harlow finds herself in a compromising situation when she walks in on her stepfather, Robert Baldwin, masturbating in the bathroom. His throbbing erection tents his pants, leaving Portia both shocked and intrigued. She can't help but notice the bulge, her curiosity piqued. Later, her stepbrother Nathan Bronson joins them, unaware of the earlier encounter. Portia, now horny and excited, propositions her stepfather and stepbrother for a threesome, eager to taste both their cocks and feel them fill her tight teen pussy.