Sex differences in affective responses to homoerotic stimuli: evidence for an unconscious bias among heterosexual men, but not heterosexual women.
Mahaffey AL, Bryan A, Hutchison KE. Sex differences in affective responses to homoerotic stimuli: evidence for an unconscious bias among heterosexual men, but not heterosexual women. Arch Sex Behav. 2005 Oct; 34(5):537-45.