21[m4f] my little sisters new phone

I flop onto my old childhood bed, my feet sticking off the end a bit. It's great being home from school for the holidays, but would it kill our parents to get me a bigger bed? I strip down to my boxers, ready to go to sleep. I feel my cock harden as I lay back under the covers, thinking of the girlfriend I left behind at school. I begin to stroke my shaft slowly, smiling as I grab my iPhone from the nightstand. I snap a pic of my cock in my hand, sending it to her. "Like what you see? ;)" As I hit send, I feel a moment of panic. Oh shit. I didn't send that to my girlfriend... I sent it to my sister! (Feel free to continue in any way you like. others just want to make him happy. Another fun option is where I don't realize that I texted my sister, and she pretends to be my girlfriend as we text back and forth. Or, you could be my big sister or mom. Lots of possibilities with this one 😉