During a family get together, my husband said something inappropriate about his sister and they brought up something he had said to them 2-3 years ago (He had told them I licked his butt)

I was so embarrassed at that time. Anyway, she said I don’t do dirty like y’all do, and I just shrugged it off and said he’s lieing. His sister goes Oh no I remember what he told us. His aunt goes “Ewww youre nasty”

Keep in mind this was a small family thing for my sons 2nd birthday. My grandma and grandpa was there and even heard their convo... I never have felt so embarrassed in my life.