Nevertheless it is canon that Transformers can have children somehow, since in G1 Quickswitch is Sixshot's son. Blackarachnia and Silverbolt were heavily implied to be mated somehow, since they had that whole empathic connection in Beast Machines.
Absolutely, though those two examples don't necessarily have to imply sexual orientations as we know them.
... you know, there isn't really any continuity as to how TFs reproduce (the only consensus is that there's no consensus). My idea on this topic is no more valid than yours.
I'll be the first to admit it's wholly speculation but it does explain a lot. I really don't see how the theory could be more offensive than claiming Jazz and Prowl are gay for each other.
Not at all!

What I was referring to was the objection to slash earlier in this thread because it isn't canon, to which I said, strictly speaking, heterosexuality isn't canon either, so in that case there'd as "bad" as each other.
And now, some trivia, inspired by the horny comment. In Ye Olde Days of Ancient Greece, it was generally considered that women got a lot more enjoyment out of sex than men. A woman's hair was considered part of her reproductive system (makes you reconsider Paul's admonition to women to cover their hair in a whole new light, doesn't it?), and men had deeper voices because their testicles pulled their vocal chords downward.