The guy is lucky with his sister - she is a nipple. She's ready to open her mouth for him to stick it in her. Apparently she serves him regularly, because he no longer feels affection for her, but fucks her like a street whore - rough and bold. However, she seems to like this treatment.
Doctors and their patients are a fertile topic, especially when the doctor has a penis the size of a good bat, and the patient looks like she just stepped off the modeling catwalk. Their imagination is also fine, they do not limit themselves in their desires. However, both clearly have not had good sex in a long time, so they greedily pounce on each other. But now they will definitely have something to remember!
I want to give my wife a similar gift