Would you pull out or drain your fertile nut deep

Ok...so you couldn't resist the urge to view your step-sis naked. It begins off as playful sexual pressure, but then as her garments start to come off... it receives very real! Your brain is telling you this isn't right, but your inner primal instincts will never cease her as she starts to stroke your really hard cock. Prior to deciding to understand it, she opens her mouth, and you're feeling here her tongue all around your suggestion... then her legs unfold as she guides your throbbing meat into her swollen moist vagina. It’s all taking place so rapid; you’re pounding her as she moans!! Your balls swell up with cum, and you hear your step-sis say...cum inside of me! Does one pull out or drain your fertile nut deep within her?