FrankTalk.org

I did a successful injection the other evening at the very base of my penis in an effort to establish the widest range of injection locations to minimise localised damage.

In looking at some detailed anatomical diagrams and feeling my way along the corpus cavenosum it looks like you could inject into the corpus well back towards the root of the penis above the scrotum and up to the point where the vas differense goes across the corpus.

The target might be a bit smaller there but would probably be achievable if you were a little aroused first.

Wondering if any one here has explored injecting that far back?

Not that far back but we sometimes inject closer to the base, like 1.5cm away from it. Same goes for higher near the gland, we've injected almost under the rim.
Whatever works for you, i guess.

For some reason when I inject closer to the base, I get a better result, but I was taught to inject 1cm to 1.5cm from the base too.

Last night I was in a hurry, and didnt care where I stuck the needle, but was very close to the base, on a partial erection. Had 2 hour rigid outcome.

When I was injecting, I tended to use the middle third of my dick, both left and right side. The left side delivered better results, but I did keep alternating.