@ehBeth,
Then since no gender is stated, that means the verse is ambiguous, and one must refer to the context. In the Qur'an we also see:
Do ye commit lewdness such as no people in creation (ever) committed before you? For ye practice your lusts on men in preference to women: ye are indeed a people transgressing beyond bounds." Qur'an 7:80-81
"What! Of all creatures do ye come unto the males, and leave the wives your Lord created for you? Nay, but ye are forward folk." Qur'an 26:165.
Here, the Qur'an addresses homosexuality as being deribed from lust, as well as condemning it.
The Qur'an also states:
It is He Who created you from a single person, and made his mate of like nature, in order that he might dwell with her (in love). When they are united, she bears a light burden and carries it about (unnoticed). When she grows heavy, they both pray to Allah their Lord, (saying): "If Thou givest us a goodly child, we vow we shall (ever) be grateful (7:189)
Here, the Qur'an states that man's mate is a woman, thus condoning heterosexuality.
So it is clear that the teachings of islam condones heterosexual relations and condemns homosexuality.