have a pre wank 1-2 hours before the session put make sure u cum .... its my routine also keeps me mind stimulated and horny during the session ... oh and doing it to porn is a must

to be totally honest with you ... the less porn i watch the less aroused i get and the less stamina i have in bed.

although if a has a good intense work out session for a few days lifting heavy weights my drive does up alot.