My mother in law is a widow in her late 60s and occasionally we have sex. I don't think she is attractive either, she is not active and is overweighted, out of shape but there is something about fucking my wife's mother that makes it exciting. I used a condom the first time but since then I just leave it all inside. My mother in law said she prefers it because it makes her hornier, and obviously I like it too. We had intercourse now and then and we performed oral on each other over the past years. Sometimes my mother in law swallows too, its great. She never told her daughter because she loves the sex too much and doesn't want to ruin it. Although we rarely do it when we do it's explosive.