Mom made me fuck dad

Dear Diary Things have gotten really strange around here since my 18th birthday and now I know why. Mother has been wanting another baby for years but she is unable to conceive. The other day she started talking to me about it and told me she had a plan. She shocked me by asking me to get pregnant by daddy but I agreed after a bit. I'll do anything for Mother. That night she started getting frisky on the couch then blindfolded him and had me take her place. I kissed and teased daddy to warm myself up a bit then got him undressed. His cock was bigger then I imagined so I took it gingerly in my mouth. Daddy sensed something was different but didn't say much I couldn't shush until I started riding his cock. Mother came in and began to masturbate and talk dirty to him so things went as planned. I rode daddy awhile and after I quietly came he bent me over on the couch. Within minutes Daddy filled my fertile pussy with a huge creampie. Thats when he pulled the blindfold off and was completely shocked. I hope this time worked because I'm not sure Daddy will do it again after that. Love Naomi