Femalien (1996)

 Femalien (1996), is, as the title implies, a female alien. This soft core steamer is different from its soft core cousins only in its plot being sci-fi based. So there is no murder mystery to muck up segues between sex scenes. Instead, the plot involves the aforementioned alien on a mission to discover the emotional properties of human beings, mostly when they're naked and on top of one another. Her investigations involve all manner of coupling, with copious nudity.  Mission accomplished!

A female alien needs some human man meat to complete her research, and she gets plenty of it. Booby Young, Adam Wilde, Everett Rodd, Bobby Johnston, Jaun Carlos deVasquez and Stevi Conrad are the willing subjects.  They show the outer space scientist a galaxy full of full frontal fun and beautiful backside bounciness. The boys are delightfully decadent and fully exposed.  Take me to your leader!