Let's see that cock twitch to attention. You order him to flex his cock, release, then repeat 5 times.

Flex your cock 5 times

Your cock muscles are weak. Let's change that! Flex your cock as hard as you can, release and repeat 5 times.

Your pathetic cock muscles are weak. If you ever want to please me, you need a stronger cock. Flex your cock as hard as you can, release and repeat 5 times.