If a man calls his wife to fulfill his desire, she should come to him even if she is busy with the oven. [At-Tirmidhi]
"«إذا دعا الرجل زوجته لحاجته فَلْتَأتِهِ وإن كانت على التَّنُور». [صحيح.] - [رواه الترمذي.]"