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The movable, internally-lubricated, [[Ridged band| nerve-laden]] erogenous [[foreskin]] and its [[gliding action]] is an important aid to masturbation.<ref name="kimpang2007">{{KimDS PangMG 2007}}</ref> [[Intact]] males simply use their hand to glide the [[foreskin]] back and forth. It is ''not'' necessary to retract the [[foreskin]] while masturbating. If the foreskin is of adequate length, then the [[intact]] male will usually keep it forward for additional stimulation. Keeping the head covered by the [[foreskin]] also protects the sensitive [[mucosa]] covering the [[glans penis| head]]. The motion of the foreskin stimulates the nerves ([[Meissner's corpuscles]]) in the foreskin. Use of lubrication is optional for [[intact]] males.There are many variations.<ref>{{REFweb |url=http://jackinworld.com/techniques/jackinexpert-collection/foreskin-fun |title=Foreskin Fun |last= |first= |init= |publisher=JackinWorld |date= |accessdate=2024-02-25}}</ref>