Suckling causes her to develop a higher relationship with the character, but also causes the player to begin developing milk addiction. Simply caressing her will result in an increase of relationship with the character. Upon finding Marble, the player has the option to milk her breasts by caressing them, suckle the milk from her breasts, or try and rape her.
The player first encounters Marble when Whitney explains that she has been overusing the milker recently and could use a gentler touch. Marble may only be encountered through the 'Explore' or 'Work' option.
