Leviticus also omits women on women from their banned list. Which is strange IMHO.
I think the context of the passage makes the meaning clearer than that.
"Even their women exchanged natural relations for unnatural ones. In the same way the men also abandoned natural relations with women and were inflamed with lust for one another. Men committed indecent acts with other men, and received in themselves the due penalty for their perversion".
The whole Bible is clear that God made men and women for each other and sex for marriage.