Good son: put your hand down his pants and give him a hand job.
From Create Your Own Story
You decide to go for it. You cram your hand into his pants, with his lack of underwear you're able to grip his shaft without problem. Dallas lets out a gasp, but before he could say anything, you begin stroking his cock. He gives you a look of lust before going back to his phone, making it look like nothing strange is happening. Minutes pass and as the bus is about to pull into the school, you fell his cock twitch and hear him let out a grunt.
A second later, spurts of cum squirt out of his dick. You pull your cum-covered hand out of his pants, but Dallas reaches over, grabs your wrist, and pulls it towards him. He quickly licks your hand clean before pulling you into a passionate kiss.
As you get up, Dallas whispers something to you: "Meet me at the Vern Barn after school if you're looking for more fun."
The school day passes without anything else interesting happening. At the end of the day you need to make a choice to what to do.