He needs to fuck because fingering is not enough
After a shower, she could fall asleep and relax for a while. You regain energy and your body is now ready to continue the daily grind. But she prefers another method that is much older. Basically you start playing insistently. But fingering is not enough, he needs to fuck. And luckily for her, her brother-in-law is always nearby and right there, she can walk across the hall and have a cock ready to give her a blowjob. After he has made her firm, all he has to do is open her legs to receive a good nail in her pussy. Then other positions before he cums.