My llama was intact, and had been with us since he was a year old. Thinking back, he did try mating with one of the large male castrated Anglo Nubians in the field once. He nearly flattened poor Abel the goat.
Not sure how it looked to passers by, but the llama was on top of the goat, and I was straggling the llama trying to pull him off ......oh, and the funny noise he was making was loud, so enough to attract the attention of anyone nearby!!. Funny enough, he never tried it on with the goats or sheep after that.