While my ex and her new partner were away, I secretly stayed in her house. They came back and I was doing some random girl doggy style in the kitchen.
The dream may suggest that you are struggling with feelings of jealousy or a desire for revenge against your ex for moving on and being happy with someone else. The act of secretly staying in her house and having sex with someone else in her kitchen may indicate a subconscious need to prove to yourself or your ex that you are desirable or have moved on as well. However, it is important to remember that dreams are not always literal and may instead reflect deeper emotional conflicts and desires. It may be helpful to reflect on your feelings towards your ex and the situation and work towards finding closure and healing.