Caution: This Erotica Sex Story contains strong sexual content, including Ma/Fa, mt/ft, Ma/ft, Mult, Consensual, Romantic, Heterosexual, Incest, Brother, Sister, Group Sex, First, Safe Sex, Oral Sex, Masturbation, Size,
Desc: Erotica Sex Story: My sister saw me naked and couldn't believe how big my cock was. I really didn't realize it was out of the ordinary but she wanted to sample it and eventually so did mom. Then she gave me some great advice. Here's what happened.