beta
His name was Usui-san. A slender salaryman with an air of purity. A slender salaryman with an air of...
So basically uke has past lovers and they all gave him a piercing somewhere on his body and by the time he got together with the seme he's already has multiple piercings made by his past lovers and that makes the seme unable to have sex with him so to get back with the seme the uke told the seme to pierce him where only the seme can see