Inside

What the two of you are engaging right now is simply sex, without any attachment or emotions behind it, only lust and instinct. And instinctively, you know that you need to sow your seeds inside the slutty woman's womb on top of you in an attempt to impregnate her. You pulled her so that her hips meet against yours and you grunt as you explode inside her, flooding her with your seeds.

"You shouldn't have done that, my lord Naruto," Jun says after she has recovers her breath. "My belly may soon grow big with your seeds. Imagine what people will say behind you when they found out that you couldn't keep yourself from knocking up a slutty whore with your bastard."