This coming from a guy, too. I couldn't believe it. Only him and my sisters boyfriend think she's the ugliest woman alive.
Ask your sister if she enjoys being a cover for an obviously gay guy.
"Purgatory's kind of like the in-betweeny one. You weren't really shit, but you weren't all that great either. Like Tottenham."
I'll try being nicer...if you'll try being smarter.