How to pass the "Key To Her Heart" mission (Hot Coffee mod)?

The mission is not hard like you think it is, just concentrate and hit the key (Space bar key if you use default control settings) when the Power bar is full...

But of course, in PC, there is other way to pass this mission: just set the Excitement bar to full with Cheat Engine.

Step 1: Progress the mission to the part where you enter the girl's house, and you start to spank, pause right there.

Step 2: Use Alt + Tab to switch to desktop and open Cheat Engine.

Step 3: I assume you know how to use Cheat Engine, the memory address of the girl's excitement is gta_sa.exe+64AC64, data type is Float. Now you can control the girl's excitement with Cheat Engine.

Step 4: Set & Freeze the girl's excitement to 100 via Cheat Engine.

Step 5: Back to the game and spank the girl 1 spank (since you have freezed the girl's excitement, so the excitement won't drop, you can slowly concentrate and hit the key when the Power bar is full) and you pass the mission.