Jack looks through his blinds into the bedroom of the next door neighbor's son. Ethan is a couple of years older than Jack and is a total jock: tall, muscular, handsome and somewhat misogynistic. Once again, Ethan is masturbating at his computer without a thought that he might be visible to others. Normally, Jack would just jerk off to the view, but he decides to generate a sentence:
"Ethan is jacking off at his desk."
Jack changed "jacking" to "jilling", and he immediately sees Ethan pawing at a pussy instead of his formerly large cock.
"Ethan is masturbating his needy pussy."
A quick change of "needy" to "dog" results in no noticeable changes.
"Ethan is trying to satisfy his horniness."
Jack changes "horniness" to "heat". Immediately, the smell of a dog in heat strikes Jack's sensitive nose. Ethan is looking far less composed and far more needy. Jack raises his blinds and stands so that Ethan can see his sizeable dog erection. He beckons Ethan, and the jock throws on some seats and runs out of his bedroom door.
Jack saunters downstairs when Ethan begins pounding on the door. He opens the door, and Ethan throws himself at him. Ethan licked Jack's cock then presented his backside.
"Jack! Thank god! I need you to fuck me! Now!"
Ethan grabbed Jack's shoulders and manhandled him up to Jack's room. Jack realized he had very little choice in the matter, both because of Ethan's superior size and strength and because of the pheromones Ethan was releasing. His tail wagged like mad. Nevertheless, he attempted to assert some control.
"Ethan, I don't think it's fair that you use me like a dildo each month when you go into heat and then ignore me the rest of the time. I think you should treat me like a boyfriend."
"Dude! You know I'm straight! The guys wouldn't let me hear the end of this if we start dating. But...um...to be honest, I never cum as hard with anyone else. I even tried to get a couple of guys on the team to fuck me, but it just wasn't the same. Listen, I don't think I'm ready to go full dating relationship, but maybe we could be friends with benefits. But can we talk about this after we cum? I don't recall my pussy being this needy before."
Ethan wrapped his arms around Jack and kissed him, reaching down to stroke the base of Jack's tail. "Besides, stud, you know my heat lasts a couple of weeks every month! You've got half my time right there!"
"You're on the pill, right?"
Ethan got on all fours on the bed, presenting his backside to Jack. "Of course I am! I don't want to have to worry about puppies at this stage in my life!"