[ ... I can't believe I have to encourage this for Saturn, the man I currently want to throttle-- ]

Well, is your friend aware of this? I think before anything, before you immediately shut down the idea, you should let this friend of yours hear from you. Like you said, not everyone feels like a homewrecker. There's no guarantee they'll think of you as some kind of seductive hussy.

Or... multiple friends. However many friends your age you're worried about this affecting.