Have you ever just held your cock or had your partner hold your cock still, no stroking, while cumming? Or when going down and she begins to cum hold your tongue still on her clit and not move? Just keep it there and let her go through the orgasm while holding on for dear life? When I do that while masturbating I'll just lay there and shudder in ecstasy for what seems like forever. I've had partners do that either by holding my cock during a hand job and not move the hand or lay still as I unload in the pussy. It seems to amplify the orgasm when doing so.
Can be fun sometimes but usually, keep on with the stimulation. Except when extremely sensitive during a blowjob orgasm
there is no way in the heat of the moment that either one of us are going to hold still. ain’t no way!