How do I let him know I'm not really into that at this moment?

Just sit him down and tell him straight up. Don't try and beat around the bush. If you keep leading him on (not saying you are) but play along with the texts your just in a way sucking him in.
all you can do, it be honest, tell him what you want and don't want.

Um, I would like to say, a relationship starts out that you listen and trust each other, and if he wants that all the time and you should tell him lets get to know each other more before we get to that, that is a big step in a relationship so don't let him be the one to make you do a bad decision that's how stuff like that happens and just tell if you want a chance to be with me then you follow my rules and guidelines, not his it is your life and not his, you want what you want not what he wants for you to do for him, so I would just come out and say it, it is to early for this and I don't want it yet, but lets go slowly and just enjoy life and being with each other the time will come but you have to be patient, if he wants to be with you he will understand that, hope I helped you!

First of all stop leading him on. Of course he is to expect that you want sex too because you have made suggestive comments in the past. Do not meet with him in person because if he is truly after sex and believes that you want it to he will (a) try to talk you into it (b) possibly rape you depending on the situation at hand (c) and this is least likely, understand where your coming from and not proceed ahead. You are taking an enormous risk in meeting him in person. I would not even suggest it all. If you do by chance want to continue these sexual conversations, let him know that he isn't going to be receiving any sex as a by product. And be extremely firm and serious about it.

I would tell him straight up. I don't know what is it with a lot of girls, if a guy is being overtly sexual with you like that he probably doesn't want for real relationship anyway. You shouldn't feel bad for turning him down, you don't have to bend over to please some dude. Just tell him NO.

But do expect him to be confused because you've been sending mixed signals. Why would you have heavily sexual conversations with a guy and lead him on if you never intend to have sex with him?

I'm guessing that, in your convos, the boy is the one who initiated the sex talk, and you pretty much just went with the flow, right? But now it's a big part of how you relate to each other (esp. From the guy's perspective), and he's getting pretty excited about finally meeting you in person. Okay, obviously you need to tell him how you really feel asap, and apologize for misleading him -- and you should do this on the phone, not in person (a lot safer that way). If you do still want to meet up, be sure it is in a public place, with other people around. See if you can enjoy each other's company, on the phone and then in person, WITHOUT sex talk. If all that goes well, maybe there is a future for the two of you. If not, well, maybe sex talk is not the way you want to start your next relationship. :))

Next time you talk to him online or whatever just be like. When me meet up we should just hook up because I don't want to have sex the first time I meet you in person. I don't want people to think I'm slutty. He'll take it fine and if he doesn't he looks weird for like wanting to have sex with someone he just met and it makes him look desperate if he gets pissed. So he'll be fine with it.

Don't lead him on.
sit him down and tell him the truth.
don't skip things just because you think they might hurt him.

Tell him that you like talking to him,but you don't want to take any actually sexual steps.
talking to him sexually is just something you two do, tell him that you don't want him thinking its going to get anywhere,because you don't want just that.

First, stop leading him on simple as that. If he asks whats up tell him your fear. He's never met you so it shouldn't be too embarrassing. It's better to be honest so just go for it. If you want a relationship without sex, go and meet him. Just keep yourself in check when starts getting to the come to my place point. You may be surprised! maybe he feels the same way you do and the sex won't come until you both are truly ready for it. In short, just talk to him!

Well. Probably stop leading him on first of all. Tell him your flirty convos have been fun but that you really aren't ready for anything physical.

If you DO want to pursue some type of relationship with him then let him know that as well if that is what he is looking for also he will be willing to wait anyway.

If all he is after is sex then maybe apologize for being such a tease and maybe go your own ways.