Antony and friends,
I don't think we can draw much of any conclusion from this.
The text does not say two MEN. It says only "two". The one who is left is not "the other MAN" but only "the other." The gender of the words "two" and of "other" (the Greek allows these words to be expressed with gender, but uses male gender when the gender is undetermined or indefinite or mixed) probably doesn't really tell us what sex the "two" are. (There is a difference between "sex" and "gender" after all.)
The point was also made earlier that two men or two women (or two children for that matter) sharing the same bed was not all that unusual. It's only in this century that we have so many rooms and beds that only married people and lovers share the same bed (and some time even they don't if they snore).
A much better candidate for an allusion to same-sex activity is found in Ecclesiastes, chapter 4 where the rhetorical question is asked "If two lie together they are warm, but how can one be warm alone?" In this case both the words "lie" and "warm" in Hebrew have double meanings alluding to sex and where there is a literary context with likely allusion to the Gilgamesh Epic and it's male pair of heroes/lovers, Gilgamesh and Enkidu.