I did not see any reason for them to lie in the stories you told or to be concerned about it if they did? It's your husband's sons and they are almost grown (I have 3 stepsons), I'd shrug. I would just let them know they are not to lie to you, you are not as accepting. One of my stepson's treated me a bit roughly as we were playing a physical game many years ago and I gave it to him right back, telling him, "You may be younger and taller than I am but I outweigh you by 100 pounds" :-) Sounds like your husband just does not like conflict so takes things at face value and hopes they fall the right way.