Hi! I don’t really know where to start, but I have been having sex with my older sister since my early teens. She walked in on me while I was masturbating. She said, it was only natural for people to masturbate and offered to masturbate with me. She was older than me so I quess you could say she ‘seduced’ me. We masturbated together. Eventually, I was asked if I would like to touch her pussy ane breasts which I did as she fondled me. We both had a great time and masturbated each other to orgasm. After a couple of times together, we progressed into having sex. She was my first. We have a very special relationship and still have sex even though we are both now married. My wife knows about us having sex, but my sister’s husband doesn’t. My wife is still very secure in our marriage.