on occasion, for variety, or on a more regular or routine basis, a woman may assume a passive role during sexual activity and leave it to her partner to provide their sexual satisfaction, which can also be an aspect of dominance and submission. for example, a person in a doggy style position may be passive and open to a variety of sex acts, generally at the choice of the active partner, such as fingering from behind, massage or stimulation of erogenous zones, including the genitals, nipples, or buttocks, and receiving a playful spank to the buttocks. the active partner can also introduce a sex toy, such as a dildo or vibrator, into the vagina or anus.