27, due to my self respect or something I quite literally have a list of them. I feel gross with myself if I can't remember their names.
Only 5 don't have last names, 2 were actually rape. More than half probably didn't give me their last names and I found it out later or while vetting them before meeting up. 6 meant something to me and in the last 2 years only 2 actually meant something special to me.
I occasionally go through a dangerous mindset where I do NSA meet ups. I do it once or twice hoping something bad will happen to me and then allow the guilt to eat me up for a bit and then I'm okay. Neither of my rapes were from that though for clarification, surprisingly - they were from people who knew me and I am thankful I haven't seen either of them again even in passing.
The list is higher if you add in people I've only done oral with but not by much.