Mistress Harley knew how powerful joi were. So she trained herself in powerful delivery of the same as she knew they would come in handy whenever she needed to get favors or she wanted to reward guys without having to fuck them. Given that she has a big ass and a big pair of tits, it was easy for her to turn guys on and then make them jerk off.
Lady Anja is in love with her hot ass. She wishes she would have been able to lick it and fuck it by herself. But since she could not, she made it a point to use it to spread cheers without necessarily having anyone fuck it. So she would tease guys and she would make them cum by giving them jerk off instructions. That sexy ass has made many a man cum.