Unlike the others, you might actually have to use some guile.

First, examine the schedules of his parents. When he's home alone, he's likely to be with Chase. While a threesome would be delicious, you specifically want one-on-one.

Chat with him online; he's not subtle about his handle. Show him your dick; get him to pose naked for you. This alone will provide a lot of fodder for your fantasies, and encourage you to taste the real deal.

Get him to agree to be alone when his parents are out.

Once so, waste no time to get to his house. Rub your hands all over his belly, under his shirt, as he greets you. Kiss him against his protests and settle on the couch. Strip him naked, but retain your clothes to impose dominance. Touch him all over: masturbate him, finger him, rim him, spank him. Mount him, thrusting hard and fast, rubbing your hands on his belly. Take your cock out and then dive back in, abusing that hole and spanking his cheeks with your crotch.

Once you're about to climax, turn him around and force your cock into his mouth. His his horns as leverage, he cannot escape. Make him swallow and add to that wonderful belly of his.

If he's still horny, keep fucking him silly, stroke his prepubescent cock. Eventually, he'll pass out and you'll leave, leaving a wonderful surprise for his daddy <3