Straddle your female partner with your knees wrapped around her upper body and chest. She should be in the most comfortable position possible.

Apply lubricant to your penis and your partner's cleavage. The constant skin on skin friction of mammary intercourse can be uncomfortable for both of you if you don't lube.

Cup the breasts around your penis and pushing them together tightly without hurting your partner. Thrust back and forth with your penis. To increase the stimulation for your partner, caress her nipples. If desired, the woman may hold her own breasts together, helping to stimulate you sexually.

Adapt mammary intercourse in a variety of ways for heightened stimulation. For instance, your female partner may place her head on a pillow or lift her head gently and perform oral sex as you continue your thrusting motions. You may also hover your partner's head, facing towards her feet, and perform mammary intercourse while she stimulates your anus with her tongue and lips.

Communicate with your partner as you approach ejaculation. Some women may not enjoy the experience of receiving ejaculate on their faces. You can ejaculate between her breasts, on her face or neck, or even in her mouth if she so desires. You may also end mammary intercourse by removing your penis from her breasts and finishing on another part of her body.

Mammary intercourse describes a sex act, performed as foreplay or as non-penetrative sex, that involves the stimulation of the male penis by the female breasts. Commonly, this sex act involves the man placing his penis in the woman's cleavage and thrusting between her breasts, while the breasts are squeezed around the penis for additional stimulation.

Mammary intercourse can also be combined with fellatio. Researcher Austen Woods, in a study of the condom usage habits of New Zealand's sex workers, said that they offered safe sex alternatives to clients who refused to wear a condom.

Woods quoted a sex worker saying that mammary intercourse was one alternative used, because she claimed it felt to clients like sex without a condom when performed by a woman with large breasts.

It should be noted however that mammary intercourse is not truly safe sex, as some STDs can be transmitted by skin-to-skin contact. When mammary intercourse continues to the point of ejaculation, the semen can land on the breasts, face, or in the mouth of the woman. A slang term for the appearance of semen landing on the woman's upper chest, neck, or shoulders is a "pearl necklace".

Several slang terms refer to mammary intercourse, such as boobjob, titfuck or titty fuck in the United States, as well as tit wank or French fuck in the United Kingdom. The Japanese sex industry uses the term paizuri (from oppai, a slang word for breast).