For a certain fee now any stranger is ready to take off her clothes, spread her legs and suck the first man she meets. Every cute girl is weak in the face when she sees bucks in front of her. I wouldn't want to be a pickup artist because it's a risky business to fuck unknown holes. Sure you can use a condom, but rubber doesn't always save the day.
Loved her sister's reaction the moment her brother pulled out his dick. What did she expect? Climbing on her haunches with her legs spread with her panties hanging out in front of him and she thought he'd get over it?