I have to ask my stepson for a huge favor! Because of a nutrient deficiency, I have to take an expensive supplement. But it's getting more expensive and I can't afford it anymore. Luckily, an alternative source is semen! I just need to drink a load of fresh cum everyday. I try not to make it awkward for us. I come into his room after he's close from masturbating and kneel down to let him ejaculate into my mouth without touching his cock. After a few days of this, I come into see him sitting. To make sure it goes in my mouth I have to gently put my lips right around the head of his cock. Then the next day he's sitting again and it takes a little longer. I guess he wasn't quite ready to cum, or I wonder if he might be trying to turn this into a blowjob... hmm...