Young girl decided to suck a member to her friend

I won’t lie - I have a very beautiful and sexy sister and when I am sad or I want sex, I jerk off my sister’s naked photos with the online. Purely by chance, the sister found me behind the jerking off to her pictures and I told where and why I found them. Well, when the girl found out about the origin of the photos, I asked me to keep their presence in secret, I asked for sex and still received it!