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Physical effort: Medium Frontal

Crossed trio: kneeling missionary plus oral sex for threesomes

The crossed trio is a threesome position built on the kneeling missionary. The receiving person lies on their back with knees bent and legs open, and the penetrating partner kneels between their legs, face to face. The third person kneels on the bed beside the receiving person's head, body at a right angle to theirs, so that the three form a cross. The receiving person turns their head to give oral sex to the third person while being penetrated vaginally. It asks for little balance but a fair amount of coordination.

Also known as: Crossed threesome · Cross trio

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Illustration of Crossed trio: A threesome position: one person lies on their back and is penetrated by a kneeling partner while giving oral sex to a third, kneeling beside their head.
Anatomy and biomechanics

The receiving person lies on their back with the back and buttocks supported, knees bent and feet flat, legs apart. The penetrating partner kneels upright between their legs, facing them, with hands on their thighs, and sets the rhythm of vaginal penetration. The third person kneels beside the receiving person's head, torso upright, with their body perpendicular to the line formed by the other two, and brings their pelvis close to the receiving person's face. The receiving person turns their head to the side to give oral sex; their hands are free to hold the third person's thighs. The receiving person and the penetrating partner can see each other. The main loads are the receiving person's neck, which stays turned, and the knees of the two people kneeling.

Why this position works

Some groups like it because it is easy to set up from a familiar position and lets the receiving person feel penetration and give oral sex at the same time, with all three connected. The penetrating partner can watch and, with a free thumb, add clitoral stimulation. It is relatively stable, as nobody has to balance. On the other hand, keeping the head turned can tire the neck, so many people prefer short turns. Sensations vary from person to person.

Sensory Exploration Medium Penis-Vagina Configuration

Variations of this position

Variation 1: head raised on a pillow

A firm pillow lifts the receiving person's head and shoulders so the neck turns less.

With one or two firm pillows under the head and shoulders, the receiving person's mouth is already at the height of the third person's pelvis. They only need to turn the head slightly, which spares the neck and makes oral sex easier to sustain.

  1. Place one or two firm pillows under the receiving person's head and shoulders.
  2. The penetrating partner kneels between their legs.
  3. The third person kneels beside the pillow, at a right angle, and comes close.
  4. Adjust the pillows until oral sex is possible without lifting the head.

Variation 2: legs around the penetrating partner's hips

The receiving person wraps their legs around the kneeling partner's hips.

Instead of keeping the feet flat on the bed, the receiving person lifts their legs and wraps them around the penetrating partner's hips. This pulls the pelvises closer, lets the receiving person guide the depth with their legs and frees the penetrating partner's hands.

  1. Start in the basic position, with the third person kneeling beside the head.
  2. The receiving person lifts both legs and crosses them behind the penetrating partner's hips.
  3. They use their legs to pull closer or hold back and control depth.
  4. The penetrating partner keeps a slow rhythm so the receiving person can continue oral sex.

Variation 3: with the hand instead of the mouth

The receiving person stimulates the third person with their hand to rest their neck.

Everyone stays in place, but the receiving person keeps the head straight and uses a hand on the third person's penis instead of the mouth. The neck rests and breathing is easier, and the receiving person can switch back to oral sex whenever they like.

  1. Start in the basic position.
  2. The receiving person turns their head back to the centre and rests it on the pillow.
  3. They reach out to the third person and stimulate them with their hand, using lubricant if needed.
  4. Alternate between hand and mouth according to comfort.

✓ Tips
  • Put a firm pillow under the receiving person's head so they do not have to lift and twist the neck to give oral sex.
  • The third person comes close enough that the receiving person does not have to strain, and lets them set the depth of oral sex.
  • Use a new condom for each person and each practice, and a condom or barrier for oral sex; in a threesome, infections pass easily between partners.
  • Agree on a stop signal that works even when the mouth is busy, such as a tap on the thigh.
  • Use lubricant, start gently and stop if anyone feels pain; cushions under the knees help both people kneeling.
Interaction type
Face-to-face vaginal penetration plus oral sex on the penis, threesome
Active anatomy
Penis (penetrating partner); mouth (receiving person)
Receptive anatomy
Vagina (person lying down); penis (third person)
Main stimulation
Vaginal penetration and oral sex on the penis
Setups and participants
Trio · 3 people In a threesome

Frequently asked questions

Who goes where in the crossed trio?

One person lies on their back, a second kneels between their legs to penetrate them, and the third kneels beside their head, at a right angle, to receive oral sex.

Is it physically demanding?

Not very. Nobody has to balance; the main effort is in the receiving person's neck and the kneeling partners' knees.

How do we stay safe in a threesome?

Use a new condom for each person and each practice, barriers for oral sex, and talk about STI testing beforehand. Consent from all three must be clear and can be withdrawn at any time.

Can we swap places?

Yes. It is easy to rotate who lies down and who kneels; change condoms and barriers each time.

Reviewed by the editorial team ·

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