DEAR ABBY: I don’t like my stepsister, and when she stays with us, I’m forced to share a room with her. The last time she was here I got so mad at her I pretended to send a text message on my cell and secretly took a picture of her as she got out of the shower. I knew it was wrong, but it seemed funny at the time. I sent it to my boyfriend because he doesn’t like her either, even though he thinks she has a “hot body.” I thought it would be a joke just between us,