Do you pull out or drain your fertile nut deep

Alright...so you couldn't resist the urge to see your phase-sis bare. It begins off as playful sexual rigidity, but then as her outfits begin to come off... it gets incredibly genuine! Your brain is telling you this isn't ideal, but your internal primal instincts will never quit her as she starts to stroke your really hard cock. Before you know it, she opens her mouth, and you're feeling her tongue all click here over your idea... then her legs distribute as she guides your throbbing meat into her swollen wet vagina. It’s all happening so quick; you’re pounding her as she moans!! Your balls swell up with cum, so you listen to your action-sis say...cum within me! Would you pull out or drain your fertile nut deep within her?