Males and females are aroused by different ways sexually; that of males is by visual view of the females; clothed, partially naked or naked totally; as to the females their arousal is by their own skin, when they are touched and caressed by ones they love over all their bodies. To the males it's the eye/sight while to the female it is the touch.
A female will be perplexed and amused seeing a male attracted by sight to herself or to her body, most of the time they have a low esteem of their bodies and seeing a male aroused when watching them gives them the esteem and power they need over the males.
A male will be obsessed by the view of the female genitals, as if longing to enter again into the portal and the womb they have come from into this world. while a female looks to her genitals having two holes, the smaller one for the disposal of urine waste and the bigger one from where a monthly unsavory blood and tissue residues flows. For this reason females are careful to shower daily and wash their private parts to avoid unpleasant odors and for hygiene. On the contrary the sight of the vulva arouses sexual desires on males -something which seems amusing to females; a female will not be aroused sexually by the view of the male penis, she will look at it as a small "hose" by which males dispose of their urine waste.
When it comes to porn, its audience are mostly the males since porn is related to the "lust of the eye". Females will not be interested in watching porn as they are not aroused by the eye, as the males are, but rather by the touch upon their bodies. Moreover, females look to love and affection in their relations with males, while males can indulge in pure sexual performance without the feeling of love and affection toward the opposite sex.
After sex, and after ejaculation/climax, a male will long to be left alone while a female will look toward more embraces and expressions of affection and closeness with her partner. A female would expect the same affection, embraces and expressions of love before the male insert his erected penis and starts the in-and out movement, to the female love making has its prelude and epilogue phases while the males are mostly interested in the mechanical performance.
So when it comes to sex, the expectations of the females and males are poles apart!