Would you pull out or drain your fertile nut deep

Ok...so you couldn't resist the urge to find out your step-sis naked. It begins off as playful sexual pressure, but then as her clothing begin to occur off... it gets quite serious! Your brain is telling you this isn't appropriate, but your interior primal instincts is not going to cease her as she starts to stroke your challenging cock. Before you decide to comprehend it, she opens her mouth, and you're feeling her tongue around your tip... then her legs spread as she guides your throbbing meat into her swollen wet vagina. It’s all taking place so rapidly; you’re pounding her as she moans!! Your balls swell up with cum, and you hear your stage-sis say...cum inside me! Do you pull out or drain your fertile nut deep inside of more info her?