Hi M.:
Take a deep breath,and keep in mind,that jumping to conclusions,can only result in bad feelings and suspicion. First, if your on the internet enough, your aware, of some of the sites that pop up,when your searching. My gosh, I've done a search on disney and all sorts of porno came up. No joke! I thought..What sicko did that? Kids will see all that! So, your husband could have come along those sites by another search. From what I can see, these aren't porno sites. They are celebs. If this is all you saw on your husbands pc. I wouldn't say a thing. You don't want him getting the impression your prying,or that you don't trust him. Has he done something to make you worry or wonder? If not, forget about it,and move on. I wish you the best.