Gorgeous. While I'm essentially a slash fan (and a Jack/Ianto shipper), I like the idea of a threesome involving Tosh. Lord knows, she deserved to have someone love her. She was such an awesome character, and once I learned how Jack recruited her, it just made losing her all the harder.
I still can't watch Exit Wounds without crying. And poor Jack, to have fought so hard to come back to both of them, only to have Tosh die.
Thankfully, he's still got Ianto to help him keep it together. They both loved her; they can help each other heal from this.