If you want to be overtaken by a carnival of sensations while the Tryfun Black Hole Stroke Cup sex machine moves around your cock, the Tryfun Black Hole Stroke Cup Inner Cup Wing and Mix is the best masturbator sleeve version for you. This particular inner cup was designed with "wings" that are spread over the entire surface that entangle your penis with each stroke, ridged protrusions in the middle for intense sensations, and tightly grouped bumps in a pocket that wraps around the glans at the end. Every movement will be pure pleasure until you reach a strong orgasm.
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