Hmm...
"Thou shalt not lie with mankind, as with womankind: it is abomination."
"If a man also lie with mankind, as he lieth with a woman, both of them have committed an abomination: they shall surely be put to death; their blood shall be upon them."
"And likewise also the men, leaving the natural use of the woman, burned in their lust one toward another; men with men working that which is unseemly, and receiving in themselves that recompence of their error which was meet."
"Therefore shall a man leave his father and his mother, and shall cleave unto his wife: and they shall be one flesh."
"Nevertheless neither is the man without the woman, neither the woman without the man, in the Lord."
"let every man have his own wife, and every woman have her own husband."
How much more clear does the Bible need to be?