I forgot my stepson's birthday present so I had to get creative. He said he never had a blowjob before so I had to show him how it's done!! He asked to be inside of me and I told him "Just the tip!" and made him promise to keep quiet. We have sex but I cannot let him cum inside me so I switch to give him a handjob until he gets off. I let him know that if he wants it to ever happen again he has to keep it our dirty little secret!!