Chu was reluctant but stood and did as he was told. His manhood was throbbing, the length didn't seem like much as it hung heavily from his sheath. Slowly as he stroked, his hand started to dip just into his sheath as he got more into it. After a few minutes he sunk his hand deep into his sheath and brought it out, gripping a knot. His erection now hung twice as long and he set to using both hands. His fingers caressed the underside of his length, lingering on the knot.