[CKJim]

I used to date my SIL before I got married to my wife. She was wild in bed with nice D Cup.

After we broke up, she got married and I started dating her sister (my wife) so things were awkward for a while but we both agree not to say anything.

One day, i went to her place to pass her some items that my wife to help pass to her. Her husband was at work and she is at home taking care of her baby. We talked for a bit and i notice she wasn't wearing any bra.

One thing lead to another and we ended up in bed together. Her boobs has grown much bigger since I last saw them (at least E/F now). Once in a blue moon, we still meet up privately but of course we both keep things hush hush from our spouses.