As a straight male and confirmed masturbator who enjoys all sorts opf porn--from Anime to Zooo, my thoughts often turn towards seeking new pleasures.  I was watching videos of guys being milked and thought "They wwouldn't have to tie me up for that!" 

I would be delighted to just lay back and let someones hands rove over my naked body, getting me hornier and hornier, then slowly masturbate me trying to keep me on the edge of cumming for as long as possible.  Or, I would happily watch a gay guy kneel between my legs to fondle my genitals and suck my cock until he drained the last drop of cum from my pulsing cock.

I have other more perverted fantasies--most probably cannot be discussed here.  I would share them with other perverts in private though.....