Kirk kicked a dude in the knee cap once, you know exactly when and where I am talking about, and it wound up being the fruitful home of the chaps love spuds, or trouser snake or baby popper... We had a trans kid in love with a ghost 2 years ago, so love is not always about rubbing interlocking pieces of meat together... THE Drazi screw into each others armpits, and if I want to be completely serious about this, I think it's only the lads who do that to each other.
I got my fill of gay Klingons in "Hidden Frontier" 20 years ago, a very lgbt friendly fanfilm series, and I swear to god that this is a line from an episode by the Bajoran lead about his new Klingon boyfriend "He's like ridged everywhere you know, like everywhere!"