I am having trouble finding where I read something. Back in 2013 or so I swallowed the Red Pill after a break up and have been since improving myself. I recently got engaged which prompted me to review the MRP sidebar material to refresh myself. There is one subject I want to review again but cannot remember the source (I read it a few years ago while going down the red pill rabbit hole... it may have been a .pdf from the sidebar or recommended on here).
The topic was lasting longer in bed. The author discussed breathing exercises that would become second nature during sex (along the lines of "Breath in for 5 seconds. Breath out for 5 seconds"). His thesis was that he learned he could last much longer in bed by intentional breathing and by focusing on sexual positions where the man and woman were perpendicular (doggystyle, cowgirl/reverse cowgirl, girl on back on bed with guy standing up) so as to minimize friction. For example, parallel positions like the Missionary Position lead to too much friction and thus quicker ejaculation. The author talked about how to use the girl's body in such a way to not expend energy/stamina while still stimulating her (during doggystyle sex, instead of thrusting into her, you instead pull her back to yourself without thrusting... it has the same effect without expending stamina).
I would appreciate it if someone could direct me to what book/website this is from.