How to delete a photo from my husbands iphone photostream?

Here is my problem - my husband and I can see pictured we click on our iphones on each others photostream. This is great BUT yesterday my kids were playing with my iphone and took a ew silly pictures. I deleted them from my camera roll and from my photostream on my phone but how can I delete them from my husbands photostream without actually manually doing it on his phone? Is there another way I could access the photostream on his phone and delete the pictures?

I mean technically the only way to delete them I the way you have already deleted your own, to delete the ones off his phone using your phone wouldn't work, unless there's an app or back door that I don't know about. Anyways the reason I think you can't use your pho e was because after you shared the pictures to him they aren't only on your photo stream but his now as well, basically like two sets of the same pictures on separate photo stream accounts. Hope it helped, although you did answer the question yourself