Well, been thinking myself why he had to send his son, when he proved in the immaculate conception of Mary that he can remove sin from someone without sacrificing himself to himself. My guess is that it went kinda like this. (And I'm only kidding on the square. Most underlying assumptions are actually sound and for some actually mandatory theological concepts.)
ACT I
God: "I hear you guy have been talking about me being gay around my back."
Gabriel: "Well, Lord, what with your being reluctant to create women at all at first for humans, and then cursing them all, and forbidding them to enter your temples..."
God: "But they're... women! Of course I don't want them around!"
Gabriel: "Right you are, Lord, as usual. But that's why some of us couldn't help wonder if you're, you know, not into women much."
God: "You couldn't help it, huh?"
Gabriel: "No, Lord. As you know, we angels have no free will, so literally we couldn't help wonder if you're gay."
God: "Gah! Ok, tell you what... I'll go get me a bride and have a kid. That'll show you I'm not gay, right?"
Gabriel: "Well... ugh... yes, Lord, your... infinite wisdom is leaving me speechless, as usual."
God: "Ok, so first things first, we'll have to make the perfect bride..."
Gabriel: "Lord, as you know, only you are perfect in everything, but I suppose we could make her near perfect in a few chosen areas, if you so wish. In what ways do you want her to be perfect?"
God: *whisltes and draws an hourglass shape with his hands* "Perfect body. And..." *cups his hands in front of his chest* "... big tits. That's what hetero guys like, right?"
Gabriel: "Err... right. What about Original Sin, my Lord? Do you want that removed too?"
God: "Oh, no no no. I want her to be quite the original kinda sinner. Kinky mind and all."
Gabriel: "Ugh. No, Lord, I mean your curse unto Eve for eating your nuts."
God: "Nah, I liked that. Besides, I thought that was Adam?"
Gabriel: "No, Lord, the chestnut tree of knowledge over there..."
God: "Oh, THAT one. Nah, I forgive her."
Gabriel: *takes notes* "Ok, so that's Original Sin removed... Does that mean they can stop having birth pains, then?"
God: "What does have to do with anything?"
Gabriel: "As you know, Lord, that was part of your curse unto Eve and her descendants."
God: "Nah, let them keep that. Serves as incentive to get a morning after pill instead of springing the 'guess who's a dad' talk on a guy. Bloody women..."
Gabriel: *flips a few pages in a tome* "Actually, Lord, those pills won't be invented for another two thousand years, according to your Plan."
God: "Really?"
Gabriels: "Yes, Lord. it's right here under 'Early Signs Of The Apocalypse', between thermonuclear bombs, HIV and lolcats."
God: "I planned that two thousand years in advance?"
Gabriel: "Six thousand at the time, Lord."
God: "Right. Anyway, off you go. Get that bride sorted out."
ACT II
(A decade and a half later.)
Gabriel: "Lord, your teenage bride is ready. Exactly what kind of a marriage ceremony did you have in mind?"
God: "Wait... what? I'm not ready to get hitched. I'm still young!"
Gabriel: "Your will is command, of course. So should I scrap this plan?"
God: "Wait, no, then I'll never hear the end of that gay talk. How about you marry her to someone else and I just have a one night stand with her?"
Gabriel: "As you wish, Lord. We'll marry her to this Joseph guy, her brother-in-law, since her sister, his wife, just died."
God: "Good."
Gabriel: "So, anyway, we should probably tell her in advance when you want to go have your affair with her."
God: "Wait... must I go down and sleep with her?"
Gabriel: "I would assume so, Lord. That was the plan, wasn't it?"
God: "Ugh... no, wait... you go get her pregnant."
Gabriel: "Lord, as you surely realize, then first of all you forbade us angels to do that any more, since the giants and flood business..."
God: "I did?"
Gabriel: "Yes, Lord. And second, wouldn't it then be my child, not yours?"
God: "Hmm... I know, give me 5 minutes alone with a cup and a porn magazine, and I'll give you something to get her pregnant with."
*God walks away whistling*
Gabriel: "Right... TOTALLY not gay..."