***NO TOYS USED*** every sexual position implied, not much shown from waist down until ass scenes. I come in your room and catch you and your sister about to fuck. I’m not mad that you’re about to have sex, I’m just upset because I’ve been watching you two fuck for the past few weeks and neither of you can last longer than 5 mins! Sis is lazy and bro cums so quick, I’m just so over it!! It’s time for me to teach you some stamina. I tell you both that mommy is here to help. I suck your cock while your sister watches, I ride you while reminding you to hold your nut in- when you almost cum a few times I reach back & grab your balls and tell you to hold your nut! I coach you and sis through it until sis is ready to suck you off. First sis sucks your cock and then rides on your face, making sure I’m watching. She sucks your cock and I approve. Then I instruct her to stick her ass up and let you fuck her. You and sis go much longer than usual and I’m very proud. You and your sister invite me to be a part of it from now on. (I play Mommy and Sis, dialogue is me pretending the other is in the room watching)