Love Factor Holy Negotiations with Sisters in Another World - Uterusu Vacuum of Subtone

The Love Factor "Holy Negotiations" series draws from a Japanese fantasy concept, and the Utererusu Vacuum of Subtone is its most technically engineered model. Non-penetrating, with lotion included, the toy is structured around three distinct internal zones that build progressively toward climax.

Entry begins with tight vertical ridges that create immediate pressure and friction. The mid-section features a randomized groove pattern — deliberately non-rhythmic — that breaks predictable stimulation and builds arousal unpredictably. The defining feature is the deepest zone: the "Utererusu" mechanism, where large-grain suction cup ridges grip the shaft on each thrust and create a pronounced vacuum-and-release effect. This suction at the deepest point is where the product takes its name.

The internal engineering is specific to this toy's concept, developed by Love Factor in Japan — a manufacturer known for high-concept themed masturbators with functional internal structures that justify the theme rather than merely referencing it.

Sourced directly from Japan and shipped DDP internationally — all customs duties are included in the listed price. Use with water-based lubricant. Clean thoroughly after each use.