I am a male sub and am about to have my first experience serving a male Dom.  I have served a Pro Domme for almost two years until She retired and have served a few other Pro Dommes when they were in town.  While my experiences with the Pro Dommes were non-sexual, except for hand release when permitted, I have incorporated BDSM play into my regular hobby play.  I am bisexual, with a lot of experience giving oral and have received anally, mostly strap-ons but with the real thing with a few select people.  With my regular Pro Domme having gone into retirement, I was looking for someone else to fill that void.  A hobby female friend told me about her Dom, and asked if I wanted to join them and submit to Him.  After thinking about for about a second, I said YES!!!  Seriously, I have thought about it hard and am ready to take the leap of being a bi sub for another Man.  
   
 I am both nervous and excited about this prospect at the same time.  I know I will have no problem with the sexual aspect, as I know he will want me to worship His cock and my ass will be His.  I am very intrigued by the power exchange aspect with another Man.  I am used to competing with other men, or working together with them, but never submitting to another Man.  I know my experience serving my Domme will be very helpful, but this will be different.  
   
 Does anyone have experience in this area and can share any suggestions, etc?  Or, does anyone else have any comments or suggestions, etc?  I have the usual limits of nothing in the extreme realm (blood, scat, animals, etc) and cannot be marked, but most everything else would be on the menu.  I would be His to do with as He wishes with Him and the lady who is introducing us.  I know I need to surrender to Him completely to make this work, as He is a tough but considerate Dom, and is very excited about having His first male sub.  He cannot wait to have a male sub to make His cumslut, bound to be used and abused for His amusement.  If He is interested, I am even considering allowing Him to command me outside of sessions, so long as it does not risk exposure in my real life.  
   
 I look forward to hearing anyone's comments on my new adventure.