How to get my mum to spank me?

When I was 16 my mom and I got into an argument on the golf course and when we got back home she said I could either forfeit my car keys for a month or accept a punishment that'd be over with in a day. I needed/wanted my car so I obviously chose the ladder.. She got me out of my room and took me to the bathroom. I realized pretty quickly what was happening, but it had been about 4 years since I had last had my mouth washed out with soap. I didn't bother trying to avoid it because I knew that'd just make it worse. Instead, I stood there leaning over the sink while she spent about five more minutes rigorously rubbing the bar of soap around in my mouth. My mom then told me I wasn't allowed to rinse and she told me to go to her bedroom. She entered nearly right after I did and I stood there by her bed as I watched her go into her closet and get out the belt. She told me to take my pant and underwear down and to lay down over some pillows. She also had a towel under the area by my face because I still had soap suds dripping down my chin. She said something about my age and that I'd continue to get my mouth soaped and my bottom strapped whenever she felt it was warranted. Anyways, the belt wasn't as bad as I remembered it being when I was a young boy, but as five minutes turned into twenty, and she methodically belted my bare bottom, it began to hurt so bad that it caused me to cry. The first time I let out a small cry, she quickly said "you think the neighbors want to hear your crying?" and she stepped out of the bedroom for a moment and came back with a lathered up washcloth and told me to open up. "You think about this next time before you use profanity and talk back to me young man." She strapped me for another five minutes or so before taking a break and instructing me to go rinse and to go to bed. "Your punishment is only halfway over, your bottom is going to be thoroughly blistered by tomorrow night young man!" I woke up the following day and immediately it occurred to me that we had to venture out into the woods....mom left a note on the table instructing me to go retrieve a bundle of switches. I didn't bother trying to collect weak flimsy ones, I knew that would only make her upset and I'd get it worse, so I got strong, sturdy willow and birch branches and bundled them together with duct tape. When my mom returned home she eagerly picked it up and performed some practice swings through the air. "Excellent job, now lets get downstairs and wrap up your punishment. I'm going to give you a good, sound, bare bottom switching, and if you have any objection to that I can always lather up another washcloth for you to suck on while I give you the switching of your life." Once we got downstairs, she instructed me to pull my pants off, "now bend over this and I'm going to strap you in just in case you kick and scream," it was a common thing to do back in their times. I was bent over a fixture similar to the arm of a couch only it was free standing and my ankles and thighs were strapped in. Before I knew it my mom was quickly bringing down each stroke. By the fifth stroke I couldn't contain my pain and I began crying and pleading with her to stop. "Young man, you needed to be taught a lesson and that's what I'm doing and I won't stop now, but I think you could use another dose of ivory soap in your mouth while you're strapped down for your switching." My mom left the room for a moment but returned shortly after, sure enough she had a bowl of water with a bar of ivory soap. She quickly worked up a good lather and brought the bar of soap down by my mouth. "Open up! I'm going to make sure you never forget this punishment!" For two minutes she rubbed the bar of soap all over inside of my mouth before telling me to bite down on it. She told me she was going to give me the last fifteen strokes of the switch. It seemed like each stroke was coming down harder than the one before and my eyes were just watering nonstop as a muffled scream got cut off by the sound of me choking on a bar of soap. She unstrapped me and told me to put my pants on and to rinse my mouth out with water now. That day, she told me she didn't care how old I was and that if I ever use foul language or disobey her rules in her house again, I should expect the same consequences. I haven't tested her to find out, but lately I have been wondering about it. Once I build up the courage, I'm going to ask her to discipline me with a bar of soap, a leather belt, and a bundle of switches.