I explain that I am a mother who only wants the best for my son. I take out your cock & start sucking. You're a little shy at first because of the new girl, but pretty soon you warm up to my familiar mouth. I tell Amarna that I know you're outgrowing me & you need another woman in your life. She's very reluctant & at first she won't suck your cock, but eventually she warms up to you. She realizes that I am just a good mother doing what I have to, and she also realizes that she's going to have to co-exist with us for the next 6 months, so she'd better play along.
Amarna & I take turns riding you, and she really gets into it. This isn't so bad. You might be a little odd, but you have a nice cock & it feels good. You've been shy about being with other girls, but now you know that being with your mom has helped prepare you for this. As you explode in an amazing orgasm inside the foreign exchange student, you feel grateful to your mom for bringing you this girl. Your mom interrupts your thoughts: "You're not cumming inside her are you?" Then she asks Amarna if she's on birth control. Amarna isn't, and she looks very worried. Your mom tries to dig out the creampie & reassures Amarna that it will probably be okay, but she isn't so sure.