Sister in law way too flirty
At dinner with the family one night my wife's older sister began rubbing her foot up and down my leg. We were out at a restaurant and nobody could see what she was up to under the table. I actually enjoyed it. She is married with three kids. Her husband was there completely unaware. I'm confessing this because I think I should tell my wife what happened and am keeping it a secret.
My sister in law used to be very easy and slept around a lot so says my wife. Knowing this makes her more attractive to me, knowing I could possibly have s** with her. I never will but the guilty thought wont leave my mind!!