8 XXX : porn_gifs

This reminds me of when I was in high school, a guy's parents came home early and walked in on him and I having sex on their living room couch. I found it quite humorous. They were hardcore Christians and saw the situation in quite the opposite light. Literally never saw or heard from him again. I think they sent him off to some Christian boarding school.
Who's the "mom"?
Source?
Who's the younger girl?