I really love the plap plap sound when masturbate, both watching and doing myself…but due to the fact that I don't stroke all tye way(just playing with glans through foreskin) so there is no plap plap sound that I sometimes lightly slap the thighs and pubic along with me playing my glans and even when i try stroking like normal guy it still doesn't go "plap plap" …hoe do I get that sound?