Naked is horny - thongs are also very hot and a thong with a cover for penis and scrotum is even hornier. First the small penis slips into the tube and when massaging and fumbling with the sac it becomes bigger and harder and feels the penis sheath from the panties. A ribbon goes through the crack of my ass and massages my rosette on the cock while walking and playing. It chafes a bit - leaving a scent of the asshole. All this makes me horny and I jerk my cock in the string until the sperm is collected in the sleeve and everything is wet with sperm. Later it is repeated.