In partner sex magick the energy circulates and builds up between two people.

To produce this great effect it is best if both partners are more or less equally trained in sex magick, or truly willing to become so and practice a lot.
Your partner should always know that your intent to do a sex magick ritual! - and agree with it!

It is perfect to expand barriers in duo sex magick as long as you both feel comfortable with it. If for any reason something happens against your will immediately stop the ritual!

The most commonly known technique of duo sex magick is having intercourse, be it with a partner of the opposite sex or of the same sex. Several magicians suggest that the best position is woman-on-top for sex magick; in this position the woman controls the depth and rhythm of penetration, she can get clitoral stimulation, and most men need more time to reach orgasm. All good reasons to use this position, but even more important is your personal preference. And you might wish to change positions as well; for this reason it is wise to place your symbol/sigil in different places in the room - or draw it with bodypaint on your partner's body!

Intercourse positions can be seen as asana's, yoga-positions, each having a specific way of freeing and directing energies. Here are some considerations on certain positions:

The famous missionary position (man-on-top): here the chakra's of the partners are placed opposite each other and partners can look into each others eyes; this enhances intimacy, contact, healing and energy. A good position for a man to reach orgasm. This position is good if you're doing magick for a positive change in the man's life.

An interesting variation for sex magick: still man-on-top, but the woman holds her legs together after penetration and does not move; only the man is active giving her his energy, she holds all this sexual energy and directs it into the universe. I would name this a good position to do magick for a mutual goal - or for something the woman wishes to realize.

Woman-on-top (cowgirl or camel-position): this woman-active position is good to do magick for a goal the woman wishes to realize. The woman gets more stimulation and the man tends to ejaculate later.

Woman-on-top-reversed (with her face looking at her partner's feet): in this position there's no eye-contact, but it can be very stimulating for both partners. A good position to do magick for a friend of the woman (she receives much of his energy and can direct it into the universe).

Side-to-side-positions: both partners are equally active/receptive; their chakras are placed opposite each other and their eyes meet - what means a lot of contact and exchange of energies. Good for magick for a mutual goal.

Doggie-position (woman on her knees, or lying on her belly, and the man entering her from behind): many people like this position, because it brings up their wild, instinctive side. A highly energizing position, and good for sending energy to someone the man wants to send energy to.

Lotus-position (the man sits in lotus- or meditation-position with the woman on his lap, her legs around his waist and his arms on her shoulders): a highly meditational position with not much room to move but much contact between the chakra's, a very good position to use the 'secret language' consisting of male and female rhythmical internal movements with the pelvis muscles.

A good position if your magick aims at spiritual development with slowly and steady built up energies, not really directed at a specific goal in the outside world. (for this aim also the side-by-side positions are very suitable).

Anal sex; this brings up our wild and beastly side; while the man penetrates the woman he can stimulate her G-spot and/or clitoris. Good for highly energized sex magick.

Warning: I hate warnings, but I have to let you know that everything that has been in the anus - be it a finger, sex-toy, penis, whatever - has to be cleaned thoroughly before you can insert it into the vagina! Because the anus contains much bacteria which in absolute no way should be transmitted to the vagina, where it can cause very serious infections!

Another way of partner sex magick is using fellatio and cunnilingus, better known as 'position 69', being mutual oral sex. Visualize the energy reaching you through the mouth of your partner, entering your body at the genitals, moving up to your mouth and then leaving you to enter the genitals or your partner; in this way you visualize an increasing circle or energy.

Mutual oral sex magick is not suitable if you work with affirmations, but good if you work with sigils and visualizations.

Partners can agree to invoke a god or goddess into one of the partners, while the other partner keeps his or her human form. This is a strong way of adoring the divine core in your partner and it can be really special for both partners.

The partner who will take on the god-form allows his or her mind to go blank, while the other partner invokes the god/goddess into theirs (it may be clear that you have to agree on the deity on beforehand).These rituals merely serve spiritual development; you normally don't use them for a specific goal in the outside world, but both enjoy adoring the divinity in a sexual way.

In The Great Rite a god/goddess is invoked into both partners. This is for advanced sex magicians. The male magician invokes the goddess into the female magician (having her mind blank), and the female magician invokes the god into her partner (having made his mind blank) - or the other way around. Again this is sex magick for spiritual evolution, and it can be very intense and unusual.