I've been having sex with my brother for a few months now and after letting him cum inside me several times, I've ended up pregnant. He walks in on me in the bathroom just after I've taken the test and I confess I'm pregnant with his little one. I thought he would be upset, but instead he comforts me and tells me he is excited. This makes me so happy and turned on, I suggest we fuck to celebrate the good news. While I'm spreading my legs for my big brother, our mom calls. He tells me to answer it while he continues to pound my pussy. I tell mom I'm pregnant, but don't want to reveal it's by my own brother just yet so I tell her I'm not sure who the father is. She calls me a dumb slut which you love hearing. I hang up with her and you fuck me even harder-telling me to call myself a slut some more. We both cum and you creampie me while I moan in ecstasy. I see the phone next to me and realize I didn't fully hang up with our mom and she just heard the whole thing! Now she knows I'm pregnant with my brother's offspring.