Do you pull out or drain your fertile nut deep

Ok...so you couldn't resist the urge to find out your action-sis bare. It begins off as playful sexual stress, but then as her outfits start to arrive off... it gets very real! Your Mind is telling you this isn't proper, but your inner primal instincts would not halt her as she starts to stroke your difficult cock. Before you more info comprehend it, she opens her mouth, and you're feeling her tongue close to your tip... then her legs distribute as she guides your throbbing meat into her swollen moist vagina. It’s all going on so rapid; you’re pounding her as she moans!! Your balls swell up with cum, and you simply hear your step-sis say...cum within me! Does one pull out or drain your fertile nut deep within her?