6-7, but that was with just a wand before I realized how much I love penetration. Some day I need to test out my new limits, bc I can have g-spot orgasms back to back much easier than clit orgasms.
This would have been back when I was in my teens, but I think it was somewhere around 7-9. After a while though, you're pretty much just shooting blanks and don't need to find anything to cum in.
My record for consecutive orgasms in one session is probably like 5. My cock tends to stay hard after I get off unless I was edging for a really long time or I was very mentally stimulated, so it's pretty easy for me to go to round 2 or 3 lol.