Good son: stand next to them and start masturbating
From Create Your Own Story
"Stop that bro!" your sister moans as Angela continues to lick her cunt. You jerk your hard cock right next to Angela´s face. She moves her face from your sister´s vagina to your penis and wraps her lips around the head while smiling up at you. She doesn´t forget about Siri though and sticks two fingers inside her and starts fingering her. Angela starts moving taking your cock deeper inside her mouth. She continues blowing you for a few seconds before going back down on your sis. She wraps one hand around your penis and starts giving you a handjob while licking and sucking your sister´s clit.
For the next few minutes she alternates between orally pleasuring one of the two of you. "That´s so wrong!" your sister complains.
"Don´t act like you don´t like it!" Angela says after sliding your meat out of her mouth. She looks up at you with a smile on her face and says: "You know... we both had a crush on you for a while now."
"Don´t tell him... aaaah!" your sister screams out in pleasure as Angela went back down skillfully licking her clit.
"Do you want to taste your brother´s penis?" Angela asks looking up at Siri. Your sister doesn´t answer. She just stares at your big cock. You catch her licking her lips. She looks up at you and your eyes meet.
