bisexual train

A specific variation of the train_position. To be a bisexual_train, a participant must have a member of each gender (male and female) to their front and back, and at least one male or female sexually interacting with a male and female. Traditionally, the center participant is male, but this tag allows any gender to be in the center.

If the center participant is visibly being penetrated by one participant, and visibly penetrating the third participant, they are known as a "lucky_pierre".

Note: While this combination is easily possible with intersex characters, bisexual_train is generally used when it only includes male and female characters.

Examples:

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A traditional M/M/F bisexual_train.

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A M/F/F bisexual_train using a strapon.

Not to be confused with:

bisexual_sandwich: The sandwich_position features a participant facing in the opposite direction (so the the outmost members form a "sandwich" facing inwards).

Note: If there are more than three participants, the position could be both a bisexual_sandwich and a bisexual_train.

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