From Bernie Goutley's review:

1.) Her Furry Face by Leigh Kennedy
A primate handler who is in a waning marriage falls for one of his super-intelligent orangutan students.

2.) War Bride by Rick Wilbur
The world is going to end tomorrow unless you’ve been taken as a pet by one of the aliens.

3.) How’s the Night Life on Cissalda by Harlan Ellison
A man sent to investigate an alien race becomes inextricably sexually entangled with one of the aliens. Eventually, he’s forcibly separated from the alien—of a race that are apparently thin-skinned—and lives to see the descent of mankind.

4.) The Jamesburg Incubus by Scott Baker
A teacher in a Catholic school finds that he can make out-of-body nocturnal visits to some of his more attractive female students.

5.) Man of Steel, Woman of Kleenex by Larry Niven
This reads more like an essay than a short story. The work delves into the physics of why sex with Superman would be fatal for Lois Lane.

6.) The First Time by K.W. Jeter
This is a variation on the old coming of age story in which a young man is taken to a brothel for his first sexual encounter. It’s just that this encounter is of the 3rd kind.

7.) The Jungle Rot Kid on the Nod by Philip José Farmer
The premise behind the story is what if William S. Burroughs (author of Naked Lunch) had written the Tarzan stories instead of Edgar Rice Burroughs. In essence, it’s a risqué take on Tarzan.

8.) Husbands by Lisa Tuttle
After the extinction of husbands, a woman develops a new species to serve the companion role.

9.) When the Fathers Go by Bruce McAllister
A husband confesses to his wife that while she was in stasis waiting for him to come back from interplanetary travel, he sired a child with an alien. Furthermore, the child is coming to live with them. But wait there’s more…

10.) Dancing Chickens by Edward Bryant
This story reads more like an overly elaborate joke than a short story. It begins with the question, “What do aliens want?” and ends with a pun punch line. That being said, the lead is an unappealing but intriguing character.

11.) Roadside Rescue by Pat Cadigan
A stranded motorist is made an indecent proposal by a chauffeur on behalf of his alien employer.

12.) Omnisexual by Geoff Ryman
This is about an intergalactic brothel, but it’s the story in the collection that reads most like literary fiction—meant in both the best and worst possible ways.

13.) All My Darling Daughters by Connie Willis
While there are several really good works in this anthology, I’d have to rank this as my favorite—if only by a narrow victory. A sassy, sexually-liberated co-ed has her sex life torn asunder when all the young men come back from break with little, furry creatures in their possession and no interest in the female student body. Besides a neat concept for a story (though it may be implying that men are overwhelmingly rapey), the author does a great job of character development making the lead character both interesting and likable, while juxtaposing her with her apparently goodie two-shoes roommate.

14.) Arousal by Richard Christian Matheson
A woman who cheats on her husband with a stranger is cursed with permanent post-coital euphoria that swamps all interest in her family and life in general.

15.) Scales by Lewis Shiner
A woman’s husband is having an affair with what she thinks is a student assistant, but who turns out to be a soul-sucking seductress from the netherworld.

16.) Saving the World at the New Moon Hotel by Roberta Lannes
A woman waiting for her spouse to meet her at a bar to apologize for his infidelities decides to get a little herself. The man she hooks up with turns out not to be a man at all.

17.) And I Awoke and Found Me Here on the Cold Hill’s Side James Tiptree, Jr.
An experienced man offers advice to a newbie to get away before he ends up seduced by the aliens. This story talks about sex, but is about something much broader.

18.) Picture Planes Michaela Roessner
This one is a poem about alien sex, rather than a story. It stands alone as the only non-prose entry.

19.) Love and Sex Among the Invertebrates Pat Murphy
In a post-apocalyptic world, a dying scientist--who no longer believes in science--creates robots capable of engaging in the act. The creatures she makes are based on a range of real animals which are written about interspersed with the story-line.