Jessie Saint and her Step Sister Jesse Pony are at home hanging out, Jessie asks her step sister Jesse for some relationship advice. She wants to have a threesome with her boyfriend for his upcoming Birthday but she's very shy to try it because she's never had one before and she is worried that she won't know how to share him with another girl. Jesse who is very close to her suggests that she try it with someone else first so she can feel comfortable with everything before she actually does it with her Boyfriend and try it with someone who has had lots of threesomes before. Jessie says she doesn't have any friends like that who would want to share their boyfriend plus she wouldn't feel comfortable trying with any of her friends. Jesse says 'I've got a great idea, why don't we do it together with MY BOYFRIEND? That way you will feel super comfortable since we are step sisters plus you will get the practice you want as well!' They agree it's a great idea so Jesse calls her BF to come over for a big surprise. He comes over and is only too happy to help Jesse help her step sister out. They have crazy BGG sex with lots of Double BJ and Pussy to Mouth and then Jesse suggests she watch her do anal as well so she can see how hot that is too and they both end up doing lots of ATM as well. After the pop shot, they share the cum back and forth and kiss and then Jessie says 'You are RIGHT! This is so fun, I can't WAIT to try this with my Boyfriend. Will you do me a favor and be in our first threesome?' Jesse happily agrees!