Hello everyone.

I posted about this before, but things have gotten more seriouse since last time.
Here's the link to the post I made before:
http://forums.psychcentral.com/showthread.php?t=207592

I have a friends with benefits relationship with my friend Josh.

I just need help understanding some things.

My friend, Kim, keeps telling me that I shouldn't have a friends with benefits relationship. She says that I'm having sex for all the wrong reasons. I do understand some of the reasons why she doesn't want me having sex (pregnancy, STD's, ect.), but I don't know why she thinks I'm having sex for 'all the wrong reasons'.
Am I having sex for all the wrong reasons?

Some of my friends think that Josh likes me more that just a friend.
Josh and I talk almost every other night, we spend time together when we can, we are very open with each other, and he buys me things for no reason at all. We can talk for hours (we can talk on the phone all night at times). Sometimes he calls me in the middle of the night just to masturbate to my voice.

I'm not looking to be in a relationship right now. And, from what Josh tells me, he doesn't want to be in a relationship either.
I don't want to hurt Josh, that's why I want to know if he could have feelings for me.

I'm just so confused. Is what I'm doing wrong? Should I put a stop to our friends with benefits relationship? Could Josh have feelings for me?

I just don't see why I need to put a stop to this.