9 shallow thrusts — 1 deep thrust
8 shallow thrusts — 2 deep thrusts
7 shallow thrusts — 3 deep thrusts
6 shallow thrusts — 4 deep thrusts
5 shallow thrusts — 5 deep thrusts
4 shallow thrusts — 6 deep thrusts
3 shallow thrusts — 7 deep thrusts
2 shallow thrusts — 8 deep thrusts
1 shallow thrusts — 9 deep thrusts
Jerk off 2 hours before sex for maximum gain.