I have a 17-year-old daughter and a 15-year-old son. They used to fight a lot, mainly because she was always bossing him around, but lately, they’ve been getting along better. I have recently found them sleeping in her bed together. They sometimes stay up watching TV together, which I and my husband are OK with if it’s not a school night, and he will just stay in her room. She says it’s because sometimes he falls asleep during or right after the show, so she lets him stay because she doesn’t want to wake him. Should I be concerned? There was a time I wouldn’t have thought much about it, but nowadays I’m not so sure. I’ve never caught them doing anything other than watching TV, and they’ve always been fully dressed, so I’m wondering if there is actually cause for concern.