With my fiancée, her abs contract intensely when she cums

It’s usually when her abs can’t take any more that she taps out

I start getting sore after I cum a few times. Or, if I’ve cum a couples times already, after my bf cums.

After a few (number depends on the situation) it takes longer and longer to get there. It is highly dependent on my state of arousal, how long it has been since the last time I had a “session” and what it is that is making me cum.

If I’m masturbating to porn, the porn has to get better and better or eventually I won’t get there.

If I’m with a partner it depends heavily on what we’re doing and their ability to continue.

When the odometer rolls over

they still get sore.

or at least that’s the excuse my partners gave me.