Would you pull out or drain your fertile nut deep

Okay...so you couldn't resist the urge to view your step-sis naked. It commences off as playful sexual tension, but then as her apparel begin to come off... it will get incredibly genuine! Your brain is telling you this is not right, but your inner primal instincts won't cease her as she starts to stroke your tricky cock. Before you realize it, she opens her mouth, and you're feeling her tongue all over your idea... then her legs distribute as she guides your throbbing meat into her swollen wet vagina. It’s all happening so quickly; you’re pounding her as she moans!! Your balls swell up with cum, therefore you listen to your action-sis say...cum inside of me! Does one pull out more info or drain your fertile nut deep inside her?