Title and description amended to 'step' to comply with the new TOS. Step-Mommy doesn't let you drain your balls any other time except for when she is ovulating. Then she rides you like crazy, being a feral cum slut, needing to breed and be impregnated. She climbs into your bed, telling you it's time. She's ovulating for a short space of time, so now is the time to fuck. You're reluctant at first, not in the mood. Step-Mommy is mad, but continues to try and fuck, convincing you to fertilize her eggs if she gives you a quick blowjob, and only if you don't waste any cum in her mouth.