SWIM and his former girlfriend would use painkillers like hydrocodone, codeine, oxycodone, and even heroin sometimes right before sex. The point being to increase the "fun"...using smack for this purpose is not a prefered choice--its best to stick with Vicodin or percocet for your sexual escapades.
See under the influence of opiates she was prone to orgasm very easily. And SWIM was unable to orgasm when under the influence of opiates. This means sex will last for several hours. Though this can be annoying. Sometimes he would reach a point when he just couldn't fuck anymore completely burned of energy to keep moving and it just doesn't work. All you wanna do is blow your load and get it over with (however this is some 5 to 7 hours later after said sex began. SWIM has tried this since with a couple other women and has worked the same.
But if looking to pro-long sex and increase her pleasure as well, opiates work very nicely.
Increases orgasms in female's
And allows the male to last longer before orgasm (sometimes too long

)
At least in SWIM's experience........
Any opinions?