Do you pull out or drain your fertile nut deep

Okay...so you couldn't resist the urge to check out your action-sis bare. It starts off as playful sexual tension, but then as her outfits start to come off... it receives extremely true! Your brain is telling you this isn't suitable, but your interior primal instincts is not going to prevent her as she begins to stroke your hard cock. Before you know it, she opens her mouth, and you feel her tongue close to your tip... then her legs distribute as she guides your throbbing meat into her swollen damp vagina. It’s all occurring here so rapidly; you’re pounding her as she moans!! Your balls swell up with cum, so you listen to your step-sis say...cum inside of me! Does one pull out or drain your fertile nut deep inside of her?