My cute younger sister with buck teeth, who struggles with cold sensitivity, became unable to live without black tights after I made her wear various denier thicknesses. One day, seeing my adorable sister in black tights, I got aroused and we did some rubbing (dry humping), which felt so good that she ended up peeing herself. Unable to hold back any longer, I tore the black tights and had unprotected sex inside her... Ever since then, stimulating her center seam makes her squirt.
