Hello, I'm looking for advice about young adult children. My stepson is 21yrs old. He has a girlfriend for about a year now. Without asking his dad or myself, he has her spending the night. I don't condone sex before marriage or having any girl spending the night. She's 18 yrs old living with her grandma.Neither one has a job. My husband said he spoke to our son and told him not to have her here all night. Well, it's still happening. This morning while I was getting dressed, she walked past me and went into our kitchen and started making breakfast. I felt my anger about to boil over. I feel disrespected. When I tell my husband he's reluctant to say anything more to our son. What can I do?