HFWO

I was reading something on here the other day and cant seem to find it again so I am starting a new thread on this topic. someone was talking about his sessions ending in hfwo and others chimed in that they have been trying to achieve that but can not. Rummel responded something along the lines that it is not something that happens often and maybe some penis stimulation could be the cause. I have a similar situation I think I can have a hfwo at the end of almost any session if I choose and after reading whatever I was reading last week I am starting to re think what could be going on. I have been at this for a long time with most of my success coming in the last year and a half. I feel i am definitly rewired can have dry o's can have aless dry o's and hfwo. a typical session with the aneros lasts about 45 min- 1 hour during that time i can build up to two what i am thinking as dry O's alot of pleasurable feelings moaning and breathing build up some times erections sometimes not seeing color flashes all the things we discuss with having a aneros orgasm. But then when i go on to what would be the third orgasm i get to the same point as the others and get the feeling that I should really just let go and let the orgasm takeover and when I do this almost every time ends up in a amazing HFWO. I do not touch my penis at all I am on my back with lags drawn up. i do rock my legs side to side to get the aneros moving a little,  at times i can feel the tip of my cock touching my thigh that can sometimes start a erection and really get things going. i try to re position my cock so it is not touching anything. Rummel suggested that maybe tensing up and moving around could be initiating the ejaculatory response. Trying to figure out now if my first two orgasms in a session are just somewhat ruined orgasms that i was able to control ejaculation or the real deal dry O.  They seem like the real deal to me but then when I really let go on the third time around HFWO.  I often just stop after the second time so this does not happen but if its been a while and i need a release I just let it go. Its not a bad thing just another reason to ponder on this amazing journey and share with all of you. What do you think?