The Spanish Inquisition discovered what all torturers discover that there is a limit to the pain that can be inflicted, before the victim's body floods with endorphins, blunting the applied pain. The evil workaround was the limitless power of the imagination. In fact, seldom was actual physical ...... necessary, as one hour of showing and carefully explaining how each ...... device worked was enough to make anyone confess.
In a much less grim vein, Victoria's secret was that less is more. A completely naked women at a nude beach isn't all that stimulating, paradoxically enough, but put her in gauzy dress, which sometime flashes what it covers before hiding it again will drive a man mad with yearning to see more. The eye and the mind loves to be tantalized. And the mind can imagine more than can ever be seen.
Also, you cannot see that much in real sex. Unlike porn, real people doing real fucking do it in the missionary position and often under covers or in dark room, so very little insertion and stroking in and out can be seen. But when she recounted their private fucking, my mind’s eye could see everything, even his cock sliding deep within her pussy, the walls of her vagina caressing his shaft, his cock head kissing her cervix at the end of each thrust.
In addition, reality disappoints. Say he cums after 90 seconds of fucking her or she gets sore and calls it quits? I preferred to imagine that they spent the entire afternoon fucking and sucking.