Mammary intercourse | definition of mammary intercourse by Medical dictionary
mammary intercourse Irrumination (“intercourse”) in which the penis is pumped between the breasts.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
References in periodicals archive
It's known as mammary intercourse
(although there are some cruder slang terms for it) and some men enjoy the sensation of sliding their manhood between your breasts.