Step-Daughter's Reluctant Friend Comes Around

[this was a custom request] your step-daughter's friend is over after soccer practice... but you aren't aware of this fact until you walk into your step-daughter's bedroom with your cock out - only to be greeted by her friend. you see - you've been fucking your step-daughter for years now - and usually after soccer practice you would go into her room to see to her. but she's in the shower... and her friend is here instead. at first she greets you kindly, until she notices that your cock is out. she begins hurling insults at you and calling for your step-daughter to come and help her but she can't hear - she's in the shower. you rip her crop top off her and stare at her body in awe as she tries her hardest to cover her breasts with her hands. she begs you to leave her alone but you continue - pulling her shorts off and spanking her bare arse as she squirms around trying to escape. your cock is rock hard now and you shove her onto her knees to suck it. she pulls away in disgust but you grab her hair and begin to face fuck her. when you pull your cock out she almost throws up and tells you that you're gross. your her friends step-dad and much older than her. she wants out of this situation but you won't allow it - pushing your cock back into her mouth to use it. you push her back onto the bed and spread her leg, positioning your cock at her entrance. she cries and begs you not to do it but you ignore her pleas and push into her while she explains that she's a virgin and doesn't want to lose her virginity like this. however, not long after you slide into her pussy, you notice her cries beginning to shift into moans. you ask if she likes it and she refuses to accept that she does. but it's apparent from her change in body language and sudden gasps of pleasure. you fuck her harder and deeper until she begins to come around. she tells you that you seem to know exactly what you're doing and that she's never felt anything this good before. she wants this now. she bends over and lets you fuck her from behind while you grasp her small hips. she begins to beg again - only this time she's begging for your cum. that's when you both her the bedroom door creak open and your step-daughter is stood in the door frame, watching you fuck her friend. she's angry but her friend doesn't care. she taunts your step-daughter and keeps encouraging you to cum inside her - telling sophie that you're her step-daddy now and that she understands why she's jealous. with a grunt, you empty your balls inside the teen and are pleased that you have not one, but two, slutty girls to fuck now.