Stroking off with my step-daughter's friend Zarena

Your step-daughter's friend Zarena is waiting for her to show up, so she engages you in conversation for a bit. Zarena wants to wait for her to show up, but in the meanwhile, she has a question for you. After all, you are an older man and you know things. You figure that you have nothing better to do, so you entertain her chatter. She seems frustrated with guys her own age and she wonders whether an older man might be more suited for her interests. She questions whether you are attracted to her and you stutter a bit. Zarena knows that you look at her, but she confesses to you that she does not mind that. In fact, she is attracted to you. She wants to go along with your mutual attraction because she sees a bulge growing in your pants. Zarena assures you that she will keep your time spent together a secret and you decide to pull out your dick for her. When you begin stroking to her, you know that there is no turning back. Very quickly Zarena is sitting before you with her bra showing.