Diesal was ready, as you say, and Jimmy was exactly the catalyst he needed to take the plunge. From the second Jim sat back down and chummily/suggestively rested his palm on Gigantor's thigh, this whole scene took on a heart and soul of it's own. The fact that they are both cute in kind of the same way, lovely bodies, a dusting of body hair, conventionally handsome kinda baby faces of the nicest kind, plus the fact that Jimmy was obviously ready for love and Gigantor was too, sort of allowed them both to move into a zone where they discovered affection(!) for each other, and mixed it with lust. If they hadn't both been such cool cute guys maybe it wouldn't have happened. But they were into each other and right for each other; and it was flabbergasting to see them make love to each other, so turned on that the testosterone jolt had them both dreamy eyed. I don't think either of them knew what hit him. They kept coming up for air with little crooked smiles of total disbelief on their faces, except for that one time James just beamed, from ear to ear.
To see two straighties fall in love in front of our eyes was apocalyptic.