I had a sex dream.. if this means anything?

Well I have a friend that Ive known for about 8 years? since I was in 3rd grade, I don't recall ever having feelings for him, I always thought he was cute but I never had feelings for him, he's my ex's best friend.. On my dream we were sitting on my bed and I wasn't wearing any jeans just my undies but I had a blanket covering me from my waist down. So he started to feel my legs and I would push his hand away but eventually he pulled me on top of him and said he couldn't take it anymore and so we began kissing and he slid his hand in my panties. I don't want to get to in detail with it because it was pretty erotic, It was very detailed in my dream It felt so real like as if we had actually done it. I have no Idea why I had this dream, I haven't thought of him or anything, I rarely talk to him anymore since my ex and I broke up, I seen him around school all the time and he'd look at me but wouldn't say anything. Is this just any random dream? or does this mean anything.