Mira Monroe, a curious teen, volunteers for her stepbrother Anthony's "scientific" exploration of human sexuality, under the watchful eye of their stepmom Nade Nasty. Uninterested in the initial setup, Mira soon finds herself drawn into Anthony's free-use fantasy as he ignores her protests and begins to use her body for his pleasure. She's ignored, fucked whenever, and left with no choice but to serve her stepbrother's insatiable needs.