Mum had stockings with seams, those were reserved for special occasions (weddings etc).
Once I was sick. Mum put me to ...... in her bed. Next to the bed was some stockings plus an unopened packet with a picture of a sexy woman in black seamed stockings and a corset. I lay there looking at the picture and my cock got very big. The pressure forced me to take off my pants and underpants. (I was 14 or 15 at the time). Suddenly my cock started spurting out cum. Somehow I grabbed a stocking and managed to spurt most of the cum into the stocking. Well I won't go into the story of how I somehow managed to clean up and hide it all from Mum.