Being used like a sex toy

I have a few kinks that I really like to fantasize about, but this one is probably the strangest.

I like to fantasize about a man using me like a sex toy, a masturbatory aid. When he puts his cock in me, he's not making love to me, I'm just a soft, wet hole or set of tits or pair of feet to help him cum.

The more explicit it is that he's just using my body, the better. The idea of him looking at porn or pictures of other women while he's sliding his cock in and out of me makes me so hot. If he compares me to the woman he's looking at and tells me how much he'd rather be fucking her but that I'm just a little better than his hand... wow.

The hottest thing for me is the idea of him saying another woman's name while he's cumming in or on me, that I know that load was for her and not for me, but I will take it for him anyway while she is in his mind. That would make me cum so hard, not that I want him to care.

I know a lot of guys like to edge themselves until they find just the right picture or video to cum to. I would love to have him in my body while he does that, watching him look, feeling from his movements when he really likes something without having to tell me (though I want him to do that too).

I don't think I've heard of another woman who is turned on by the idea of this and the closest I've gotten is sharing some pictures of my sister (without her face), and I have to say that that is a real turn on. The idea that I am talking to someone who could be looking at naked pictures of me but would rather cum to clothed pictures of my sister... that is just strangely hot to me.