Let's give the man some credibility. He explains at length that he didn't have sex with her, they just kissed and he stuck his fingers in her vagina, but that when she took his cock, he didn't get hard.
So he just enjoyed watching his friend having sex with the girl. The friend had problem for he has hard his dick, even though he is straight, but this was because they had been drinking.
And in the end he says, yes he did, he enjoyed the experience, but not because he was attracted to her, but because of his friend, who had known each other since high school. And he found it exciting at the moment.
The man had his chance to experiment and he took it.
What is true, is that there are some very homophobic comments, below, but not by this man but by some reader that the only label he has read is peanut butter.