u/AdSmooth2236

I seen guys cum from being fucked by dildo or another guy. I got experience with dildos but not once have I came from it.

Is there some secret technique or something to do it?

Am I just never going to be able to do it?

Do filters have a bottleneck as in does it slow down fluid and gas flow?

Also do gases pass through transit tubes?

I don't want random gasses seaping in to the other end.