Yes, gay sex normally involves more lube, since the anus and rectum aren’t capable of manufacturing their own lubrication like the vagina does. (Not always, though plenty of straight couples have anal sex, too.) Yes, there are usually differences in the types of penetration that occur when gay and opposite-gender couples use the same basic positions.
But missionary, doggy and cowboy/cowgirl are extremely common among all genders. (You’ve guessed correctly cowboy is homologous to cowgirl.) Those sexual positions, naturally, aren’t the only ones that guys with penises can enjoy with each other. Penis-owners have missionary sex, doggy-style sex, cowboy and reverse cowboy sex, too – and they’re all pretty damn good. After all, the anatomical parts don’t fit together exactly the same way.
When and if they do, though, they probably assume that “gay sex positions” must, by definition, be very different than “straight” ones. Heterosexuals may not think very much about the mechanics of gay sex. Terminology | Old Faithfuls | A Little More Work, But Worth It | Other Possibilities
