My partner has 2 adult kids. Early 20s, both boys. My partner and I have lived together for 3 years. His kids have never lived with us so there’s not that level of comfort for me when they come round unannounced and I feel there’s no boundaries. Sometimes I am in the shower or I have to hide quickly because I’m not dressed when they come round. The other week they came round at 10pm unannounced wanting to have a drinking session. Sometimes we are in the middle of cooking tea or eating tea when they come by and it always seems to be for a piss up. As much as I want them to feel welcome, it’s my home and I want to feel comfortable too. Is there anyone who has had similar experiences who can give me advice. I know Covid might come up in some responses but just to confirm, I don’t live in the UK.