Is sex with an ex a bad thing?

It depends on whether or not you want more from them or not. If you want more out of it then yes its a bad thing because you are allowing them to get what they want, and it could lead to misinterpretations on your end, and give you false hope. To me having sex with an ex is just like saying I'm going to allow you to continue to play with my heart and string me along. But if that isn't the case and you guys just like having sex and there is nothing there emotionally then id say it was ok but you must ask yourself if you are ok with them having sex with other people.

Some people don't work well with each other in the relationship department, but the sex is mind blowing. If you broke up because you don't get along that well, but you both love the sex (and you are both still single) then why not?

Yes

Its not a bad thing . .
but don't let it give you false hope . .
keep in mind that sex is just sex , & that having it with your ex dosent mean use are going to end up back together .

No it's not bad it's fine. Just don't be cheating on anyone if your ex has a girlfiend or something. Other than that it's basically normal.

Depends....sex with ex husband...bad...sex with ex boyfriend...could be ok if you have a good friendship and depending on the reasons you broke up...All in all probably not a good thing unless you both communicate about it upfront.

Usually it is a bad idea. . If you want a friends-with-benefits situation, find a girl that you don't have any history with.

There is obviously a reason they are your exes, so whats the point? It can't be exciting, can it? A total waste of time! Just move on to a real relationship!

Not at all if you're safe about it and everyone is honest about the situation.