I guess this post will be mostly for jasmincar,
Before you can really delve into tantra, you need to first have a meditative/yogic practice, because tantra is really just another form of yoga (not just your “I’m gonna stretch and get a workout yoga” but meditative yoga). Tantra essentially is a way of bringing your focus presence into the sexual realm (usually referred to kundalini).
I can go on for hours about this but you’re best reading the works of other established authors who will go way more in depth and explore other realms. One thing to keep in mind is that with any meditative practice there are many different viewpoints, instead of getting caught up in every little detail, just follow the path that fits for you. Some useful books/resources:
http://www.aypsite.org/ - has a lot about various yoga and mediation, as well as tons of affordable ebooks. I would start with just the beginning meditation stuff before moving into tantra specifically if you don’t have any experience.
The Way of the Superior Man - By David Deida, its a book more on masculinity and sexual polarity, but goes well with any tantric practice.
Enlightened Sex - By Deida as well, as useful as his other book.
The Multi-Orgasmic Man - Mantak Chia, this book is about male orgasms, understanding them and how to achieve internal orgasm.
There are plenty of other books out there that are worth a read, I just can’t vouch for them myself, rad them, the worst that might happen is that you learn something =^.^=
Now about the internal orgasm…
An internal orgasm is achievable by any man who is willing to practice it. The basic idea of it, is that you are separating the sensation of an orgasm from the reflex of ejaculation. When practicing it is best to draw your awareness inward as it will help you feel and understand your orgasms more, making it easier to achieve the internal orgasm. I wouldn’t recommend practicing this with a partner until you have a steady practice on your own. I also wouldn’t recommend watching porno (or atleast turn it off a few minutes before you think you will orgasm) because it distracts you from yourself (tantra is all about awareness and focus, not distraction).
Like all males, you probably learned to ejaculate with your orgasms, which is why you can’t simply think yourself into an internal orgasm at first. You have to undo the reflex you’ve built up over the years/decades. The technique I learned is called the pinching technique. To practice, you would masturbate right up until the point at which you are at the edge before your orgasm. You would then put pressure on your perineum (there should be a spot at which it feels like there a small ball or a pea, thats where you do it) with a finger or two on one hand and then on the other you would pinch the head of your penis wit your thumb and index finger (this should NOT be painful). Its best to do this just as you go over your edge (or just get your hands in the right position and then push yourself over). You most likely will not get it the first few times, which is ok, you will need to practice your timing and where to pinch, put pressure, etc. Sometimes you may even get it half way or 75%, etc. Just keep working on it. the point of doing this technique is to show your body the difference between your orgasm and ejaculation. Once you get it the first time it should be easier to do, however you will need to keep practicing before you can untrain your reflex.
