Statistically speaking this is impossible. The upper means for a mongoloid male (assuming non central Asian with other racial admixture ) is likely 7.5 inches, assuming a 20% growth via various means (pump/priapism/clamping) gives at most 9 inches. Realistically, it’s more like 8 if we’re generous. Beyond that, asian penises are more compacted tissue wise once erect than other races, and point at a curved 45 degree angle on average. So despite the lesser length, getting the hard shaped object down your throat will take some practice. You may want to invert your throat position to better accommodate the curvature. As Asians are renowned for their lack of hip control I also hope you have a strong gag reflex.