I actually want to ask 2 questions here…
What is the longest you’ve had sex without taking a break?
How long is too long? Well, I guess you could look at this question in 2 ways, but you know what I mean.
I think my longest session was about 10 hours. Not strictly sex, but the mix of it all. Great exercise!
I really don’t have a maximum amount of time I’d set. Only when the natural female lubrication starts wearing down it gets a bit uncomfortable. Lube helps, but it’s incomparable.
Define “the mix of it all”. Was ear sex involved?
Not possible.
Foreplay, talking dirty, oral, kissing, massage… Sex isn’t just thrusting, is it? That would be boring.
I guesstimate around 14 hours. Depends, though. There were intermittant cat naps taken before rutting recommenced, for example. But we still consider it a “single session,” since we never left the room, took sustenance, or were further than 6 inches from each other except to go to the bathroom.
My longest session was about 2 hours.
ETA: I’ve never done that all day sex thing, where you just lay in bed and take naps and have sex and stuff all day long, but I’ve always wanted to.
Ear sex not possible? Clearly you haven’t seen the Family Guy episode.
“Once you go black, you go deaf.”
If you’re talking over a period of time, like silenus describes, then I’d say the better part of a day without the self-same sustenance or leaving the bed area. If you’re talking a single session time frame, then easily around 4 hours. However, before this can be perceived as bragging, that was the only sexual talent this guy had. After the first couple of rounds at this, it became enjoyable, but I’d have given anything at the time to have him able to do anything else with gusto.
I thought it was “once you go black, you’re going to need a wheelchair”?
If we consider it as just a session, then I’ve had several weekends that started early Friday evening and technically ended with a bang early Monday morning.
If we consider it as an actual physical coupling, then I managed to go a little over 2 hours one time when I was a lot younger.
If we’re just talking about a single sex act, then I don’t really know. Nothing brag-worthy I’m sure.
If we mean the whole session, then I have been lucky enough to have had the whole half-day comprised of alternating between sleep and sex routine. So, I guess about six hours?
Actually Doing The Nasty (leaving aside foreplay and plain old smooching and whatnot), 3 hours. She was very proud of being multiorgasmic and I was just in the zone that morning, that perfect combination of very relaxed and very horny.
I’d cut off a pinky to be able to do that on demand 
A single “act”… 'bout 2 hours, but that beats #2 by about… 2 hours ;).
A session… about 14 hours, but that was when I was 18. My refractory period has gone from minutes to an hour in the meantime.
If you mean just the single session and direct act (no foreplay, etc.), then long enough to use up all the natural lubrication and cause painful rubbing burns.
Seriously. Ouch.
Three day session including sleep. Back gave out.
I had sex for a weekend once and I only have one thing to say…
ouch.
Single session, a little over an hour. I was 22 he was 18, and I think I finally said, “GET off of me!” But there were a lot of those half day, or whole day, on and off sessions back in college. I remember one 7x in 7 hours session. sigh
Memories ♪ like the corners ♪♫ of my mind…♫
Carol?
I can’t answer in terms of hours, but the most number of times in a row I’ve done it is 9. That’s with the normal resting period of about 15-30 minutes after each one, but I still consider it a personal achievement.
Probably only about 3 hours. I have the extra strong version of that “guy” thing though, where after I cum, I lie there for about 10 seconds, then jump (literally) out of bed and want to start doing something else.
Probably like 5 hours. It ended up being around 3am and she had to get up early the next day.