'I know all about sex. I've just never done any of it... I guess you've been right when you've said that I had no life. And I know you've had experience...I thought you could show me what it's like.' Lisa looked like she might burst into tears at any second. This was difficult for her. 'I mean...I'd like to find out what it's like with you...my brother, before finding out...you know, with someone I hardly know and stuff...' I didn't want to upset her, but what she was talking about was crazy! She was my sister! She was obviously really mixed up about some things and it was my job...