23 year old male at the time of posting but this was about 2 or 3 years ago. I was hoovering my houses living room that I shared with my mum and step farther and had to change the bag because it was full. I took the bag out of the little red Henry and binned it, on seeing the new bag I had found under the kitchen sink, i noticed that the connection point to the bag was as I can only describe it a rubbery orifice. I stuck my finger in and lo and behold it was firm yet soft, immediately my mind had seen the possibilities. I lay on the sofa after fluffing myself up somewhat and placed the opening to my penis. Slowly I entered at first, but with each stroke I had more confidence. I banged that Henry Hoover bag with all my might until I reached an extraordinary bliss and then after ridden with shame of what is done, connected it to the Hoover and finished my work. Henry wasn’t quite as affective after, as the membrane was much more stretched than before.