between mouths
post #1839187 post #2811717 post #312838
One character being caught between the mouths of two other characters (usually with these last two kissing), though with no obvious clues that they're more likely to be swallowed by one than the other, if at all. Generally qualifies more as mawplay than vore.
If the character caught between moughts is being regurgitated by one character into the other, this is prey_transfer and oral_transfer.