My ex’s mom saw my size and instantly got mad at her husband

This will be a long story short. I had dated my girl at the time for just over two years and was at the beach with her family. Her family were all heavy drinkers so at any hour of the day or night there were a few people always trying to keep the party going. After being at the beach and drinking all day, I came back and fell asleep only to wake up around 2 AM loud noises, but also realizing I needed to take a shower. We were sharing a room with her parents, which I had forgotten about until I stepped out of the shower naked as her mom was walking in. She just gasped and softly said ‘it’s so much bigger than her daughter had told her.’ I just stood there enjoying the moment (he mom was cute and was genuinely shocked). She laughed and walked out of the bathroom and I got dressed. Later on that night, it was just her, her husband/my girlfriend’s dad and me up drinking. We were absolutely shit faced, and she started going on about how large I was compared to her husband or any man for that matter. Her husband was always a little Little submitted so when she told him to go ahead and feel what her daughter was taking every single night, I was shocked that he actually did it.