Place it on his cock, then have him blow you.

From Create Your Own Story

A thought comes to you, and you think it over. Yes, it would be most pleasureable to have him test out the ring, while he sucks you off. It would give you an opportunity to learn how willing your bodyguard is to try new things, and how good he is at oral, while also giving him a treat. Yes, this is the best idea...

Kreel gulps and says "I'm... I'm done. What do you want to do with me?" The grey seer was right about the knot, the Stormvermin and you both have canine-esque cocks. His is a decent size, and stands out well against his jet-black fur. Yours is, while smaller, still a good fit for your frame. But close inspection can wait until later, you've got a rat to fuck.

Place this on your cock you say, holding up the ring.

"Bu... but that won't fit!"

"Try it."

He sighs, but walks over and picks up the ring anyway. With an expression that clearly reads, "This won't work, and I'm only doing it to please you", he starts to slip the ring down along his cock. To his surprise, and your delight, the metal seems to boil, but without heat, when it touches the knot, dissolving and flowing over before reforming on the other side.

What did I tell you? It works fine!

Yes, yes it does work fine, judging by Kreel's groans. Now to give yourself a bit of pleasure. You sit down on the stool and beckon him over. Understand what you want perfectly, your bodyguard stops stroking the tip of his cock, walks over, drops to his knees and starts to suck. It's not the most comfortable position, he's too tall to blow you properly, so you grab the back of his head and stand up. He jerks in surprise, and almost slips off your cock except that your hand is on the back of his head. As it is, he just takes a few seconds to readjust.

You moan, this is a much better position. With all those obstacles out of his way, Kreel is turning out to be a decent cocksucker. More to come later.