Hmm, I think my fave would have to do with Catwoman(Selina Kyle..not that copy-cat character in the movie). Or then again, maybe both...like Selina Kyle capturing Patience Phillips(the catwoman in the Catwoman movie), and tickle-torturing her for making that movie..and wearing that horrible costume. And I'd be watching, maybe cheering Ms Kyle on. ;-)
Or, the "transported from our world into the comicbook world" plot sometimes used in fan-fiction (there's been a few of them on fanfiction.net)...where, say..I somehow end up in Gotham(probably the animated series one..although I loved the Returns Catwoman, I don't think she'd be quiet as friendly to a fan lol) and for some reason or another, Catwoman saves my ass from some thugs..and takes off before I can thank her. Of course, I remember she's Selina and find where she lives and somehow end up tied with her tickling me(either to find out how I know who she is, or for some other reason..like maybe her looking thru my drawings--which I'll have once I'm able to draw her good enough-- of me bein tickle-tortured by her and realizing i'm a fan or somethin...)
Or, somehow Michelle Phieffer learns I'm a Catwoman fan and she-- or an impersonator she's hired-- ends up somehow getting into my room without me knowing at first,(hey, it's Catwoman...it wouldn't be as fun if she just walked in there. Well, maybe it would, but it'd be more Catwoman-like of her to somehow be in my room lying on the bed or sitting in a chair and I'd only notice her once I was in the same room. ) tickle-torturing me (once they'd find out that's one fantasy I've had since seeing Batman Returns as a little kid.)
Or...hmm, I can probably come up with a good amount of roleplay stuff havin to do with Catwoman ...or other comic book characters (but she'll always be my fave)