My step-brother and I have been fucking for years, it's just what we do. We've learned everything from eachother and love to fuck as much as possible. He has a bitch of a girlfriend who is constantly snooping and suspicious. One day she is over and stumbles upon his stash of condoms (that we use). She accuses him of cheating, storms out, and I take the opportunity to move on in. We start fooling around, I let him fuck me raw for a bit, and then have him put on a condom like normal. He fucks me hard all over the room in various positions, and makes me cum. Once it's his turn, he cums while I am riding him hard and deep just like he likes. This time, though, the condom breaks and he cums inside me. Three months later, I am pregnant, he is back with his girlfriend... and it's a hard secret to hide. FUCK.