Increasing metronome challenge

Get ready for the most intense JOI challenge you've ever done before! I will give you Jerk Off Instructions for 20 minutes while I tease you, strip for you, play with my tits and pleasure myself at the same time. Wait, this is just the beginning! While doing so, I will start and display my digital metronome in the top left corner. It's going to be a JOI where the cock strokes match the rhythm of the metronome tempo. We will start very slow at 25 bpm, but gradually increase the tempo up to 405 bpm. You must TRY NOT TO CUM until we reach the end of the game where I will give you a cum countdown. We will both cum simultaneously. You will start to stroke from start to finish, never stop stroking and keep increasing the rhythm! Do you think you can beat my game?