[MF] Is this normal?? Very short read

Two days ago I’ve experienced what i can only describe as a “spontaneous orgasm”

Me and my girlfriend were in the middle of a bdsm session where i was the sub, and out of nowhere i started cumming really hard, but there was no build up to it, the orgasm came on instantly with no sign i was about to cum, my legs just started shaking and twitching with no warning and i started moaning uncontrollably, and it happened 10 minutes later as well.

It wasn’t a bad experience at all, it felt beyond ecstasy, it was just a really unexpected climax.

Has anyone else experienced this before? If so i would like some tips and tricks on how to make it happen again, that would be very appreciated, feel free to DM me i almost always answer!! ;)

Source: reddit.com/r/gonewildstories/comments/zmg2zp/mf_is_this_normal_very_short_read