I woke with a throbbing erection in my panties, having had an unusual and erotic dream. After waking, I realised that one of the reasons I had been so turned on was because I was engaged sexually with myself. It wasn't just my method of masturbation that was getting me excited, but the fact I was having sex with my double -another me. Then I twigged that the reason I was so horny was because I was speculating about having full blown sex with myself.

It occurs to me that I would really relish taking my erect penis into the back of my throat, and sucking myself off till I spunked in my mouth. It's not just tasting my own sperm - I do that already, but the action of sucking my own cock that I would love, and that of sucking my own balls.
Parting my ass cheeks to smell and lick my own anus, probing deep inside my rectum with my tongue, would be such a joy as I taste my own bumhole. Then, the pure joy of sliding my shaved sissy shaft up my anal sphincter, sodomising myself hard and deep, buggering myself till I cum deep inside myself. And, on the other end, the pure pleasure of having my own penis ramming itself repeatedly in and out of my tight asshole, buggering me hard and deep, till I feel my own sperm shooting deep inside my own sissy rectum.

I think fucking myself would be a carnal pleasure I would have to repeat again and again - after all, I do love sex with myself, as I turn myself on so much.

What would be the best bit of literally "fucking yourself"?