Can you tell me how to stay longer in masturbating ?

Here are some ...: How long you can sustain an erection for sexual pleasure largely depends on your personal energy and ability at a time & place under a circumstance. As men age, the energy & ability declines to the level like an old battery. But, what you do now is: engage masturbation after a full rest for a full energy & ability replenishment; slow down the pace and amplitude of stroking; on healthy lifestyle.