My boyfriend jokingly asked another girl for nudes?

There is no such thing as "jokingly" asking for nudes.
For his request not to be perceived as serious, he made it sound as if it was a joke but believe me, if the girl would have agreed to his request, he would never have told her to stop sending because it was only a joke.
As a matter, he was dead serious and obviously was secretly hoping she would agree. To me, that is indicative of a twisted mind and unfortunately for you, a sign of emotional cheating. That is a total red flag and a toxic behavior.
Not only was his behavior disrespectful but should be a serious warning to you.
It's not a great sign, to be honest. But I don't know if this is like a childhood friend he's really close with and always has been, then it may be different. It's generally not a good sign, but it's not the end of the world. If he's messing around or wanting to mess around there will be signs. One sign isn't necessarily enough to cause suspicion, but 2 or more indicates he's looking elsewhere. Just look out for the typical sign of cheating. You can find lists all over the internet. Find a good source and see if he's checking more than one of these boxes.
Men and women can be friends and it can be totally platonic. Experience tells me this is rare. I have slept in the same bed with a girl, who is a friend and there was no funny business, most guys don't or aren't capable of doing this, though. It is only an opinion.
I don't think it fits the classic definition of "cheating" but that doesn't matter. He is being extremely disrespectful in a very public forum. Why are you still with him?
He is being completely disrespectful towards you. If you think flirting is cheating, he cheated on you and he will not stop this thirsty flirt comments because he has a girlfriend. If you can't stop caring about it, break up
Opinion
6Opinion
It's not a joke. It was made that way so he won't get caught! Nobody should be doing any nude crap but that should tell you right here he's already cheating.
You are not being clingy. He disrespected you. You MUST stand up for yourself and demand respect in this situation. You ABSOLUTELY MUST CONFRONT HIM. Set a boundary of respect. But he must fear you. You must mean what you say. Which means you must know that if this continues be willing to dump him.
The joke is on you, the request for the nudes was a real and if she passed the test then he found another friends with benefits to get some new sexual gratification. Afterwords he will find another quest, always keeping you as the girlfriend in waiting. Leave his sorry ass by telling him the joke is on him and he has lost you for good.
Shoot, if he's doing that to her, what else is the guy doing? I would tend to think this guy has or will cheat on you. I'd move on from him.
no one jokes about this shit
what next? he will jokingly go around telling girls on street "hey I will rape you" or "Hey show me your pussy"
It’s pretty obvious it’s not a joke, and would 100% accepted those nudes if the girl agreed
Fuck that shit, just from the context that’s so inappropriate way would you even make a remark as such. Go with your instincts they’re not wrong.
You better keep a close eye out on him in the future
Superb Opinion