Susan suggests removing Michelle's shirt so it doesn't get oily

You're rubbing your hand over Michelle's lower back, giving her a hard, sensual massage.

"Sis, we should remove your shirt so it doesn't get oily," Susan says. You give her a smile for her her initiative. Michelle is feeling too much pleasure to protest.

Susan removes her sisters shirt and bra. You see Michelle's side boob as she lifts her body to help her sister denude's her.

You are now free to run all over Michelle's back and arms. Susan joins in as well - running her slender hands over her sister's bag.

"You ever have a four hand massage before, Michelle?" you ask.

"Uh-uh," is all the reply Michelle manages.

Susan pulls her sister's socks off and then begins massaging her sisters feet while you still work on the back. Your cock fills with blood as you watch Susan slowly works her way up her sister's body - feet to ankles to hamstrings to thighs.

"I'll get a towel for you, sis," Susan says. She grabs one a closet. "Turn around, John," co-worker says with a wink and - then she unzips her sisters skirt, tells her to lift her body, and then slide her sister's skirt and undies down Michelle's oily legs. Of course, you didn't actually look away. That was for Michelle's sake only. Susan then placed the small towel over her sister's nice ass.