Reborn as Sam Winchester in Supernatural TV

I've got a question for you guys, who should I pair Dean up with? I'm debating either Bella or Jo, you guys thoughts?

Also for Sam, the thing with Sam is, I'm debating either only keeping him with Ruby one or two more girls, but don't expect much romance or even anything 'spicy' if you will.

Personally, I don't like harem in stories because they most of the time if not all the time become a 'spicefest' as I like to call it, but I've got a plot, which well, will make the most logical sense to make a certain evil woman fall for him, that he seduces her to his side because of a romantic relationship being well one of the best ways to tie someone down to you and Sam will need this woman's power and as we all know when it comes to evil people, without the right incentive their alliances are fickle.

I don't know, logically I know from who I wrote Sam as he'd do it, but I still wish to hear you guys's opinions.

So, yeah, am looking forward to read your comments and do please comment what you want otherwise I won't be able to take it into consideration.