According to a study which involved heterosexual males (I can link it if you ask) men who expressed more negativity towards homosexuality showed more biological signs of arousal in response to gay porn yet denied feeling aroused in response to gay porn more often. The men who were more accepting towards gays showed on average less biological signals of arousal towards the gay porn but were much less likely to lie about the amount of arousal they felt when asked to fill out a response after viewing the gay porn.
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According to a study which involved heterosexual males (I can link it if you ask) men who expressed more negativity towards homosexuality showed more biological signs of arousal in response to gay porn yet denied feeling aroused in response to gay porn more often. The men who were more accepting towards gays showed on average less biological signals of arousal towards the gay porn but were much less likely to lie about the amount of arousal they felt when asked to fill out a response after viewing the gay porn.