1. They like to have "sleepovers" but you're not getting ANY action not even a handjob

2. You hear ALL about their sexcapades with other people

3. They call you LIL BRO or LIL SIS

5. You help them get ready for dates and/or you hear ALL about their dating problems

6. When they tell you "why aren't there more of you"

7. They end text messages saying "see you later", "ttyl", "have a good night"