question about masterbation

well i also consider myself as a chronic masturbater too. but i have many experiences with girls also. if u r talking about making your erection last for a long time without cumming, then from my experience, u should use condoms. it works very well for me. i can go for hours with my steady erection. but i cannot give u advice on ejaculation because i have problem with ejaculation ( i cannot ejaculate while having sex) so far. but i stay "up" for hours. it is even longer when i use condoms (i use condom most of the time). i think condoms help with maintaining erection because it tightens at the base of your penis which holds the circulation (the blood in penis during erection cannot draw back easily) thus maintaining erection. or mayb it is just me....i dont really know but condom really helps. for stamina.....well u just gotta do cardio exercises :-) they help a lot too. more "plow". hehe. there is also a trick if u do not want to cum quickly *pull out when u are about to cum and stop the motion for awhile* . i think that as long as u can maintain your urge to cum u can plow your girl for quite a long time. i hope i answer your question since im not really sure what you meant by "stamina".