That's...difficult to answer, really, as the meaning of sex can vary wildly from person to person. As cliche of an answer as it might be, only you can really determine that. Sorry to offer so little in that regard.

That said, as you do seem to be hesitant about the love aspect not being there, I would say that for you, love is a significant factor in it being meaningful to you. I can see that in your post now, and I've observed that from you in the past. If that's important to you, I'd advise you to stick with it. Granted, I could be completely off in drawing that conclusion, as you know you better than I, so do take that with a grain of salt.

On the other hand, I have heard stories where people lose their virginity with a close friend, and while the love isn't necessarily there, they don't regret the decision. The act was handled with care, with mutual respect, and was done...well, right, for all intents and purposes. So it is possible that it be meaningful but not necessarily....romantic, in the stricter sense of the word (romantic in a legalistic sense instead of a more dinner and candles way). Ultimately, that (perhaps unfortunately, for offering advise) brings the question back to you.

As far as what types? lol Unfortunately, I've got nothing there. Sorry Doc.