Raising the Mast is a sexual position that is a relatively easy position to achieve and will bring immense pleasure to all those involved and is just perfect for trying out during your threesome.
Kama Sutra positions for threesomes “Raising the Mast” threesome sex position: – Hints, tips and instructions.

Lay Girlfriend A flat on her back on the bed and place both of her legs over your shoulders and from here you can penetrate from many different angles and even vary the stroke and depth of penetration for increased arousal and teasing with your penis.
Girlfriend B can now easily straddle Girlfriend A’s face and get some great oral sex in the mix.

Step 1: Girl lays back and prepares

Step 2: Man positions himself with the womans legs raised

Step 3: Woman B straddles Woman A for Oral
Things the guy will enjoy from the Raising the Mast threesome position:
He will be able to maintain some serious eye contact with Girlfriend B during this position. This is a great sex position for you to do with your partner (as Girlfriend B) It’s as though you are both fucking the same person but actually doing it at the same time ‘together’. Great in a trusting intimate open relationship.
The things that the women will enjoy from the Raising the Mast threesome position:
Girlfriend A will feel like an amazonian goddess as you enter her and your partner is riding her face.
Girlfriend B will be getting some amazing oral sex sitting on the other womans mouth and able to watch you have sex with the other woman. All the while you are maintaining eye contact with your own partner girlfriend B. Raising the Mast will certainly make your Threesome go with a bang!