I was hoping you would jump in. It's a shame they can't charge him with anything else... I think he's just as much or more to blame for this.There was a case, in Britain I think, where this guy is hanging in a bar and meets like 2 or 3 other men. He invites them over to his house to have sex with his wife, saying that if she fights that's the way she likes it. So they do. In that case, which was years ago, the husband was actually there and still didn't get convicted of rape or attempted rape.
There was another case where a man did something like this but with personals in a magazine I think. He was charged with something but it wasn't rape.
I don't know how the marine guy could be charged with attempt to have forcible sex with someone because he didn't make that attempt. He set up the circumstances for it to happen. It's really unfair but I don't know what he can be charged with.
EDIT: Alright so here is another article I found that lays out the charges:http://www.trib.com/news/local/article_99865963-0de9-5aa3-8b8d-2b493d7b53f0.html (by the way, the article describes a little more what happened, so while not terribly explicit some might want to avoid it)
The Marine: Stipe, 27, has been charged in Natrona County Circuit Court with conspiracy to commit first-degree sexual assault.
The actual attacker: Ty Oliver McDowell, 26, has been charged with three counts of first-degree sexual assault, one count of aggravated kidnapping and one count of aggravated burglary.