Your distorting the "evidence" to fit your argument
No, he isn't.
I certainly don't have sex with the idea of creating little versions of me (or my girlfriend). We do it because it is pleasureable. It does bring us closer. Reproduction is not an after-thought though. We actively try to avoid it.
What does this have to do with whether or not the purpose of sexual desire is for pleasure?
Mayhaps your missing the contrast?
Bonoboes have sex year round. Humans have sex year round.
The animals that only have sex for reproduction have a specific time in which they do. Now then, think about when most of them are in heat. They are in heat when the gestation time would put the birth of their offspring in a time when resources were plentiful. You think it's coincidence that most animal births are in spring to summer (or wet season versus dry season)? When is it easier to raise offspring: when resources are plentiful or in the dead of winter when there is nothing but your own fat reserves?
I was born in december, about 120 years after you. If I had been born in the Ice Age, I would have most likely been screwed. The resources just didn't exist in the winter season.
What this suggests, is that humans, because they don't have a set time for breeding, have sex for pleasure, closeness, and intimacy. It does not suggest that we have sex for recreation purposes.
You stretched that one too far
Crash didn't. You did. By invoking the creator. We're dealing with evidence here, right? YOu have no evidence for the creator (beyond personal belief and a millenium old compendium that doesn't even have a single version)
I specifically asked him for no sexual preference upon making his decision
And yet, he has one, and answered based on his sexual preference. When you pointed him to bodybuilding women, he was disinterested. This means that it is men he finds attractive, especially the shoulders of men.
Suppose you ask me what part of the body I like (with the idea of no sexual preference). I respond by saying "the breasts". You point me to fat men with flabby breasts. You follow by saying--do you like those? I will answer "no, I don't".
This would mean that I am potentially attracted to women.
If you were trying to prove that I chose to be heterosexual, (or with the case of your friend, proving that he chose to be homosexual), you haven't. All you have done is to show that we like specific body parts on specific sexes.