Nobody can tell you what to do in this situation. I can only tell you what I would do in that situation.

If you were both under the impression that you were looking for something serious, then I wouldn't be sticking around. I'd tell him that, as much as you enjoy his company, you want something more serious than he can offer. If he's sleeping with someone else, even if it's not "serious" right now, who's the say that in the future it won't become serious? If you two continue dating, and then end up sleeping together, then I'd say you've gotten somewhat serious. Then you end up in a situation where he is having to chose between you and this other woman. Sounds like a shady situation. Unless you are prepared to end up in a competition with anyone woman, I'd look for someone a little less... sleazy.

Just my opinion. Good luck in whatever you decide to do, just be careful.

Hmm so he's been lying to you for how long? Longer than a month and a half I'm sure . . . 

Sounds like he just views you as one of many, sorting through the girls until he finds the one.

And when I hear, "he's not going to push you into having sex" with him, that doesn't mean he doesn't plan on it happening anyway after you develop feelings and are ready, even if you're not exclusive.

If you don't want to date a guy who is dating other women, don't. Simple as that.

Unless you like STDs, run far away. He's a skeezeball.

I'd personally leave. It sounds like you're ready to commit, and he's not. If you both aren't on the same page, someone is going to get hurt.

If he was serious with you, he would stop seeing other women. He is probably telling the other girl the same thing. Don't fall for it. Don't see him.

To me, personally, it doesn't sound like he really is looking for a serious relationship like you stated. Instead it just seems like he wants to date around, which he is doing. Eh, no one can tell you what to do. But go with your gut on this one! :)

You're not his girlfriend, he's not your boyfriend so never assume you're the only woman a man is dating if the relationship is not exclusive. Keep in mind, you have the freedom to date other people as well so don't let him be your only option. If he wants to sleep with other women, that's his prerogative because again, you're not his girlfriend, you're just a woman he's dating, just like he's not your boyfriend, he's just a guy you're dating. Therefore, he doesn't have to tell you who he's sleeping with or dating but I'm happy he was honest with you when you asked about it, that's really good. Personally, when I'm dating someone I don't have sex before commitment, so if the guy wants to continue to hang out with me and have a great time, that's fine. But in order for us to move to sex, there needs to be commitment as I've never learned how to share a mans "member" LOL!

All jokes aside, if you're uncomfortable being one of the women he's sleeping with or being intimate with, then don't let it get that far. You can be close and keep your legs closed and his "member" in his pants (cut back on the fallacio)...let him know if he wants to sleep with you then it needs to be within a committed, exclusive relationship AND he needs to get tested (so do you) before intimacy begins. No one wants to spend the rest of their lives with herpes or HIV.

He wants exactly what he said from you, he enjoys your company and he wants to spend time with you. If your relationship progresses into an exclusive commitment then he would remove those other women from his life and only focus on you.

Men are WAY more simple than women make them out to be...

If you want a serious relationship, never allow a purely physical relationship to happen.  You'll most likely end up being just a booty call.  If you just want a fling, then go for it!  But only you can decide what you want.

For a moment let's consider the fact that we're living in the MODERN AGE!

Everyone is entitled to date and see whoever they want, how often they want, and see however many people the want!

You two have been dating, your not in a relationship and your not exclusive. It's perfectly reasonable for him to see however else he wants. Granted, he should've made it known in the beginning that he was seeing other people.

Frankly I have to agree with a few of the above commentators. You haven't been "intimate" with him at all in a month and a half and you expect him to sit around? Now when I say that I don't mean start giving or putting out ASAP, what I mean is that you should've really seen this coming and you really shouldn't criticize this guy too harshly. He is still seeing and trying to get to know you after all, and you two haven't slept together. It's possible he's legitimately interested in you and not what you can give him, if you catch my drift.

As far as what others above have said about him not looking for a serious relationship...Let me repeat, WE LIVE IN THE MODERN AGE PEOPLE! We are not bound to one person! He's doing what every other rational human being would, he's playing the field and seeing what's out there. If your looking for a serious relationship you don't latch onto the first person you start dating.

I digress. Start dating other people if you want and have a conversation with this guy about exclusivity if you truly want to be with him. If you have that conversation though and he says yes, you better sure as hell not wait another month and a half.

Personally I say relax, take it easy, see a few other people, enjoy yourself and see what else is out there.

I'd be a bit hurt that he was involved so intimately with someone else.This isn't a very pretty situation. Either way someone is going to get hurt. He's dating two women. And unless you are into polygamy, this situation going to have to come to a head at some point. Personally, i don't like it. I think it's shady.

I'd move on to the next. Saying you want a serious relationship with someone, but sleeping with another person is not okay!