Well, my stepfather always whipped me completely naked, and at least in front of my stepbrothers (one my same age and the other one year older), stepsister (one year younger)and mum. I was sixteen when I started living in his house with my mother. Often whippings even occurred in front of others as well, such as my friends! While whipped naked (leaning on the back of a chair, with wrists and ankles fastened to the chair's legs with adhesive tape) I had to keep a bar of soap in my mouth... and I received each time no less than 100 lashes (often more than 200), with a thick belt! The pain and humiliation were terrible! Sitting on a wooden chair at school in the subsequent days was extremely painful...
My stepfather was a strict believer in corporal punishment, associated with public humiliation from 15, "because this is the only way for the punishment to be effective on old boys" he used to say (however he corporally punished only me, never my stepbrothers and stepsister!). He used to warn me with "you'll be always disciplined in front of witnesses: the more, the better" and "you'll receive all your whippings in your birthday suit, stark naked, without even socks!". I have to admit that initially I was rather sassy toward him, but punishments didn't stop even when I became much more polite and well-behaved: there was always a reason to discipline me (even for leaving the toilet seat up or not answering the question "What time is it?" quickly enough). A couple of times that I was whipped in front of my "friends", also three girls were present (you may imagine my overwhelming humiliation). While boys seemed to be a little sympathetic, girls turned out to be real witches: I soon became "whipped a*s" for all the school. One time, I was even dragged by a group of bullies to a restroom, where they stripped me naked in front of a dozen boys and girls gathered there on purpose: it was a nightmare. Whippings in front of my classmates were the worst, but there were several others in front of my stepfather's friends and relatives, as well as some neighbors (besides the "regular" witnesses, i.e. my stepbrothers, stepsister and mother).
At 19 (yes, I was punished this way even when I was 18!) I left that house and went to another city, where nobody knew me. Only now that he has passed away I have forgiven my stepfather. At least, I'm "happy" to find here that I wasn't the only boy in the world who suffered the humiliation of naked whipping with witnesses!