Mammary intercourse is a sex act, performed as either foreplay or as non-penetrative sex, that involves the stimulation of a man's penis by a woman's breasts and vice versa. It involves placing the penis between a woman's breasts and moving the penis up and down to simulate sexual penetration and to create sexual pleasure.
Mammary intercourse is a sex act, performed as either foreplay or as non-penetrative sex, that involves the stimulation of a man's penis by a woman's breasts and vice versa. It involves placing the penis between a woman's breasts and moving the penis up and down to simulate sexual penetration and to create sexual pleasure.
Source: Wikipedia "Mammary intercourse" · CC BY-SA 4.0
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