Hmm, let me see.
There's my three sis-in-laws, they've filled my masturbatory fantasies for a long time now. I fantasize about old girlfriends, group sex, gangbangs of my wife, co-workers and such. Luckily, I've been blessed with a vivid imagination!
My favorite one is my wife tied to a picnic table or tree and watching her being pleasured by guys and gals. Oh, she's also blindfolded. Excuse me, I gotta go close my door now.