My favorite fantasy is to be in a 69 with a woman while I get gang fucked and she sucks my cock or she gets gang fucked while I eat her pussy with cum running out of it.
I watched most of it thinking, "This is more homoerotic than bisexual," and then at 24:11 I thought, "Wow, that guys is really comfortable being close to another guy's dick," and then - BAM - at 24:22, he jams is mouth right on the other dick.