Mammary intercourse

Tit fucking, also known as "tittyfucking", is a form of sexual foreplay, where if the female partner has large enough breasts, the male uses a lubricant, such as baby oil to create a slippery surface between the females breasts, the female then squeezes her breasts together, as the male slides his penis through the tight area, much like a vagina.

This foreplay works well for males who have breast obsessions, or for females who enjoy having large breasts. There is also no risk of pregancy with this form of sexual activity.