I never noticed thrusting as a factor for blood flow. I can be rock hard laying down, or standing, jerking off or not. Thrusting or not. Hell even on my head in yoga sex, I was rock hard.
The catch is whether you think about the act or not. If you focus on details, then you're going to deflate, period. It's a tactic I use when I need to last longer for her. If she's having a slow morning, I distract myself if I feel tension building up so I can keep going. Think too long and you lose the pole, don't think (or think/act on what gets you off) and you shoot too early.
In that respect, for a healthy male who has ED (especially selective ED), it's usually mental.
edit: One thing I've noticed is if you have significant pressure on your taint region, you might lose the stiffy, but not the mood. I've done this a few times and it makes me laugh when i can shoot a huge load with a completely limp dick. I suppose it's blocking the flow in but not the flow out. Talk about funny looking LOL
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Last edited by Vigilante; 08-24-2009 at 02:02 PM..
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