C'est si bon pour l'entretien du pénis et accroître son endurance. The entire genitals can be FRICTIONED with NETTLES Personnaly I am PROUD and ENJOY to get my cock and my balls slapped and even spanked with good natural leaves !
That's not painful at all. Every boy does it quite often with camrades, being proud to perform in front of girls. Mature men like their cocks being slapped by their wife without any shame...