How do you know when a girl has cummed?

Well k genral yes. Afte a curran point of arousal you climax , as a guy you wud have sperm come out urbpenis head. As a girl you wud have cum coming out of your clitoris wich is at the topbof the puss, girls can normal cum more than guys. So prettynmuch to answer the qwestions if your inside her her puss wud tighten up and kinda like a twitchy way her sole body will for a period of tym

I agree with garywife and my answer to fau is you can actually feel the difference when she is wet and when she cum gets more wet, sticky and feels more slippery. Some girls spit the cum out or runs down. It depends woman body. I mean you cant missed her reaction, they are 2 reactions either she stops and tries to hold it thats when man does the job so she can cum or she may go for it like she gets freaky and cums.

Another thing if you don’t arouse her it will take longer for her to cum and more chances the guy cums before her.